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MatemáticasMatemáticas385 views·Updated Jun 24, 2026·1 page

Cómo Resolver la Regla de Tres Compuesta, Directa e Inversa

V
valery@valerymadi95_s38qc5c

La regla de tres es una de las herramientas matemáticas...

1
of 1
# Reglu de Tres

Simple Averiguar el cuarto teimino cuando se tiepen 3

3 página 7 minutos

39 paginas-) x

$x = \frac{39 \cdot 7}{3} = 97$

Regla de Tres: Tu Herramienta Matemática del Día a Día

¿Alguna vez te has preguntado cuánto tiempo te tomará leer un libro completo si ya sabes cuánto tardas en leer unas pocas páginas? La regla de tres te da la respuesta de forma súper sencilla.

La regla de tres simple es perfecta cuando tienes tres valores conocidos y necesitas encontrar el cuarto. Por ejemplo: si lees 3 páginas en 7 minutos, ¿cuánto tiempo necesitas para 39 páginas? La fórmula es: x = (39 × 7) ÷ 3 = 91 minutos.

Cuando el problema se vuelve más complejo y necesitas aplicar varias reglas de tres, usas la regla de tres compuesta. Es como resolver varios mini-problemas conectados entre sí.

Tip clave: Siempre identifica primero si la relación es directa o inversa antes de hacer los cálculos.

Existen dos tipos de proporciones que debes dominar. En la proporción directa, cuando una cantidad aumenta, la otra también aumenta en la misma proporción. En la proporción inversa, cuando una cantidad aumenta, la otra disminuye proporcionalmente.

Para resolver proporciones directas, multiplicas en cruz (como una X). Para las inversas, multiplicas en línea recta. ¡Es así de simple!

We thought you’d never ask...

What is the Knowunity AI companion?

Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.

Where can I download the Knowunity app?

You can download the app in the Google Play Store and in the Apple App Store.

Is Knowunity really free of charge?

That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.

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Can't find what you're looking for? Explore other subjects.

Students love us — and so will you.

4.6/5App Store
4.7/5Google Play

The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.

Stefan SiOS user

This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha KlichAndroid user

Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

AnnaiOS user

MatemáticasMatemáticas385 views·Updated Jun 24, 2026·1 page

Cómo Resolver la Regla de Tres Compuesta, Directa e Inversa

V
valery@valerymadi95_s38qc5c

La regla de tres es una de las herramientas matemáticas más útiles que vas a usar en tu vida diaria. Te ayuda a resolver problemas donde necesitas encontrar un valor desconocido comparando proporciones entre cantidades.

1
of 1
# Reglu de Tres

Simple Averiguar el cuarto teimino cuando se tiepen 3

3 página 7 minutos

39 paginas-) x

$x = \frac{39 \cdot 7}{3} = 97$

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Regla de Tres: Tu Herramienta Matemática del Día a Día

¿Alguna vez te has preguntado cuánto tiempo te tomará leer un libro completo si ya sabes cuánto tardas en leer unas pocas páginas? La regla de tres te da la respuesta de forma súper sencilla.

La regla de tres simple es perfecta cuando tienes tres valores conocidos y necesitas encontrar el cuarto. Por ejemplo: si lees 3 páginas en 7 minutos, ¿cuánto tiempo necesitas para 39 páginas? La fórmula es: x = (39 × 7) ÷ 3 = 91 minutos.

Cuando el problema se vuelve más complejo y necesitas aplicar varias reglas de tres, usas la regla de tres compuesta. Es como resolver varios mini-problemas conectados entre sí.

Tip clave: Siempre identifica primero si la relación es directa o inversa antes de hacer los cálculos.

Existen dos tipos de proporciones que debes dominar. En la proporción directa, cuando una cantidad aumenta, la otra también aumenta en la misma proporción. En la proporción inversa, cuando una cantidad aumenta, la otra disminuye proporcionalmente.

Para resolver proporciones directas, multiplicas en cruz (como una X). Para las inversas, multiplicas en línea recta. ¡Es así de simple!

We thought you’d never ask...

What is the Knowunity AI companion?

Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.

Where can I download the Knowunity app?

You can download the app in the Google Play Store and in the Apple App Store.

Is Knowunity really free of charge?

That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.

Similar Content

Most popular content: Proportional Reasoning

8

Most popular content in Matemáticas

9

Most popular content

9

Can't find what you're looking for? Explore other subjects.

Students love us — and so will you.

4.6/5App Store
4.7/5Google Play

The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.

Stefan SiOS user

This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha KlichAndroid user

Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

AnnaiOS user