Finding the Fourth Proportional to 1,025.26, 1,537.62 and 448
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Solution
The fourth proportional to 1,025.26, 1,537.62 and 448 is: 671.88
Step by Step Solution
- Step 1: Write the proportion equation
1,025.26 : 1,537.62 = 448 : x - Step 2: Convert to fraction form
1,025.26/1,537.62 = 448/x - Step 3: Cross multiply
1,025.26x = 1,537.62 × 448 - Step 4: Simplify right side
1,025.26x = 688,853.76 - Step 5: Solve for x
x = 688,853.76/1,025.26 - Step 6: Final answer
x = 671.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.