Finding the Fourth Proportional to 5,385.38, 7,431.82 and 3,027.53
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Solution
The fourth proportional to 5,385.38, 7,431.82 and 3,027.53 is: 4,177.99
Step by Step Solution
- Step 1: Write the proportion equation
5,385.38 : 7,431.82 = 3,027.53 : x - Step 2: Convert to fraction form
5,385.38/7,431.82 = 3,027.53/x - Step 3: Cross multiply
5,385.38x = 7,431.82 × 3,027.53 - Step 4: Simplify right side
5,385.38x = 22,500,069.02 - Step 5: Solve for x
x = 22,500,069.02/5,385.38 - Step 6: Final answer
x = 4,177.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.