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Finding the Fourth Proportional to 1,164.67, 1,747.17 and 616.89

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Solution

The fourth proportional to 1,164.67, 1,747.17 and 616.89 is: 925.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,164.67 : 1,747.17 = 616.89 : x
  2. Step 2: Convert to fraction form
    1,164.67/1,747.17 = 616.89/x
  3. Step 3: Cross multiply
    1,164.67x = 1,747.17 × 616.89
  4. Step 4: Simplify right side
    1,164.67x = 1,077,811.70
  5. Step 5: Solve for x
    x = 1,077,811.70/1,164.67
  6. Step 6: Final answer
    x = 925.42

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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.