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Finding the Fourth Proportional to 1,134.68, 1,702.17 and 550.71

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Solution

The fourth proportional to 1,134.68, 1,702.17 and 550.71 is: 826.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,134.68 : 1,702.17 = 550.71 : x
  2. Step 2: Convert to fraction form
    1,134.68/1,702.17 = 550.71/x
  3. Step 3: Cross multiply
    1,134.68x = 1,702.17 × 550.71
  4. Step 4: Simplify right side
    1,134.68x = 937,402.04
  5. Step 5: Solve for x
    x = 937,402.04/1,134.68
  6. Step 6: Final answer
    x = 826.14

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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.