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Finding the Fourth Proportional to 4,737.38, 7,106.28 and 1,815.47

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Solution

The fourth proportional to 4,737.38, 7,106.28 and 1,815.47 is: 2,723.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,737.38 : 7,106.28 = 1,815.47 : x
  2. Step 2: Convert to fraction form
    4,737.38/7,106.28 = 1,815.47/x
  3. Step 3: Cross multiply
    4,737.38x = 7,106.28 × 1,815.47
  4. Step 4: Simplify right side
    4,737.38x = 12,901,238.15
  5. Step 5: Solve for x
    x = 12,901,238.15/4,737.38
  6. Step 6: Final answer
    x = 2,723.29

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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.