Finding the Fourth Proportional to 1,131.34, 1,697.28 and 400.99
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Solution
The fourth proportional to 1,131.34, 1,697.28 and 400.99 is: 601.58
Step by Step Solution
- Step 1: Write the proportion equation
1,131.34 : 1,697.28 = 400.99 : x - Step 2: Convert to fraction form
1,131.34/1,697.28 = 400.99/x - Step 3: Cross multiply
1,131.34x = 1,697.28 × 400.99 - Step 4: Simplify right side
1,131.34x = 680,592.31 - Step 5: Solve for x
x = 680,592.31/1,131.34 - Step 6: Final answer
x = 601.58
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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.