Finding the Fourth Proportional to 1,472, 2,208 and 446
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Solution
The fourth proportional to 1,472, 2,208 and 446 is: 669
Step by Step Solution
- Step 1: Write the proportion equation
1,472 : 2,208 = 446 : x - Step 2: Convert to fraction form
1,472/2,208 = 446/x - Step 3: Cross multiply
1,472x = 2,208 × 446 - Step 4: Simplify right side
1,472x = 984,768 - Step 5: Solve for x
x = 984,768/1,472 - Step 6: Final answer
x = 669
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.