Finding the Fourth Proportional to 2,097.36, 3,145.68 and 558
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Solution
The fourth proportional to 2,097.36, 3,145.68 and 558 is: 836.90
Step by Step Solution
- Step 1: Write the proportion equation
2,097.36 : 3,145.68 = 558 : x - Step 2: Convert to fraction form
2,097.36/3,145.68 = 558/x - Step 3: Cross multiply
2,097.36x = 3,145.68 × 558 - Step 4: Simplify right side
2,097.36x = 1,755,289.44 - Step 5: Solve for x
x = 1,755,289.44/2,097.36 - Step 6: Final answer
x = 836.90
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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.