Finding the Fourth Proportional to 1,327.92, 1,991.97 and 354
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Solution
The fourth proportional to 1,327.92, 1,991.97 and 354 is: 531.02
Step by Step Solution
- Step 1: Write the proportion equation
1,327.92 : 1,991.97 = 354 : x - Step 2: Convert to fraction form
1,327.92/1,991.97 = 354/x - Step 3: Cross multiply
1,327.92x = 1,991.97 × 354 - Step 4: Simplify right side
1,327.92x = 705,157.38 - Step 5: Solve for x
x = 705,157.38/1,327.92 - Step 6: Final answer
x = 531.02
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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.