Regra de 3

Matheus Piscioneri

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About this app

The simple rule of three idea is commonly used in many everyday situations. It uses a practical process to solve problems involving four values ​​of which we know three of them.

Let's look at four practical steps used a simple rule of three:
1) Build a table, gathering the quantities in columns and linking each value to its greatness;
2) Identify whether the quantities are directly or inversely proportional, what we will see after the last step;
3) Assemble the equation as follows: if the quantities are directly proportional, multiply the values ​​in the form of X; if the quantities are inversely proportional, the multiplies in line values;
4) Solve the equation.