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Finding the Fourth Proportional to 7,322.52, 10,981.02 and 2,641.28

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Solution

The fourth proportional to 7,322.52, 10,981.02 and 2,641.28 is: 3,960.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,322.52 : 10,981.02 = 2,641.28 : x
  2. Step 2: Convert to fraction form
    7,322.52/10,981.02 = 2,641.28/x
  3. Step 3: Cross multiply
    7,322.52x = 10,981.02 × 2,641.28
  4. Step 4: Simplify right side
    7,322.52x = 29,003,948.51
  5. Step 5: Solve for x
    x = 29,003,948.51/7,322.52
  6. Step 6: Final answer
    x = 3,960.92

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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.