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Finding the Fourth Proportional to 7,382.92, 11,072.50 and 2,187.58

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Solution

The fourth proportional to 7,382.92, 11,072.50 and 2,187.58 is: 3,280.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,382.92 : 11,072.50 = 2,187.58 : x
  2. Step 2: Convert to fraction form
    7,382.92/11,072.50 = 2,187.58/x
  3. Step 3: Cross multiply
    7,382.92x = 11,072.50 × 2,187.58
  4. Step 4: Simplify right side
    7,382.92x = 24,221,979.55
  5. Step 5: Solve for x
    x = 24,221,979.55/7,382.92
  6. Step 6: Final answer
    x = 3,280.81

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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.