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Finding the Fourth Proportional to 3,894.27, 5,841.41 and 972.57

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Solution

The fourth proportional to 3,894.27, 5,841.41 and 972.57 is: 1,458.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,894.27 : 5,841.41 = 972.57 : x
  2. Step 2: Convert to fraction form
    3,894.27/5,841.41 = 972.57/x
  3. Step 3: Cross multiply
    3,894.27x = 5,841.41 × 972.57
  4. Step 4: Simplify right side
    3,894.27x = 5,681,180.12
  5. Step 5: Solve for x
    x = 5,681,180.12/3,894.27
  6. Step 6: Final answer
    x = 1,458.86

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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.