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 set up a proportion to solve a word problem?

Back

Identify the two ratios involved in the problem and set them equal to each other.

Front

If a recipe requires 2 cups of flour for 12 cookies, how many cups are needed for 1 cookie?

Back

0.1667 cups of flour.

Front

What is the formula to find the unit rate?

Back

Unit Rate = Total Quantity / Number of Units.

Front

If 4 cups of flour make 36 cookies, how many cookies can be made with 1 cup of flour?

Back

9 cookies.

Front

How do you find the total amount needed when scaling a recipe?

Back

Multiply the amount of each ingredient by the scaling factor.

Front

If a train travels 300 miles in 5 hours, what is its speed in miles per hour?

Back

60 miles per hour.

Front

How do you calculate the distance traveled if you know the speed and time?

Back

Distance = Speed x Time.

Front

If a recipe calls for 3 cups of cheese for 6 pizzas, how much cheese is needed for 1 pizza?

Back

0.5 cups of cheese.

Front

What is the relationship between the number of cookies and the amount of flour in a recipe?

Back

It is a direct proportion; as the number of cookies increases, the amount of flour increases.