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Finding the Fourth Proportional to 7,957.92, 10,981.89 and 4,421.19

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Solution

The fourth proportional to 7,957.92, 10,981.89 and 4,421.19 is: 6,101.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,957.92 : 10,981.89 = 4,421.19 : x
  2. Step 2: Convert to fraction form
    7,957.92/10,981.89 = 4,421.19/x
  3. Step 3: Cross multiply
    7,957.92x = 10,981.89 × 4,421.19
  4. Step 4: Simplify right side
    7,957.92x = 48,553,022.25
  5. Step 5: Solve for x
    x = 48,553,022.25/7,957.92
  6. Step 6: Final answer
    x = 6,101.22

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.