Proportion Word Problems

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Front

How do you find the missing value in a proportion?

Back

Cross-multiply the known values and then solve for the unknown.

Front

What is the formula for calculating a ratio?

Back

Ratio = Quantity A / Quantity B.

Front

If a car travels 360 miles in 6 hours, what is its speed in miles per hour?

Back

Speed = 60 miles per hour.

Front

What is the scale of a map?

Back

The scale of a map shows the relationship between distances on the map and actual distances.

Front

If 1 inch on a map represents 10 miles, how many miles does 3.5 inches represent?

Back

35 miles.

Front

What is the first step in solving a proportion word problem?

Back

Identify the relationship between the quantities.

Front

What does it mean to set up a proportion?

Back

It means to create an equation that shows two ratios are equal.

Front

In a recipe, if 2 cups of flour make 24 cookies, how much flour is needed for 12 cookies?

Back

1 cup of flour.

Front

What is the relationship between the quantities in proportion word problems?

Back

The relationship is expressed as a ratio.