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Finding the Fourth Proportional to 7,305.31, 10,954.07 and 3,791.78

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Solution

The fourth proportional to 7,305.31, 10,954.07 and 3,791.78 is: 5,685.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,305.31 : 10,954.07 = 3,791.78 : x
  2. Step 2: Convert to fraction form
    7,305.31/10,954.07 = 3,791.78/x
  3. Step 3: Cross multiply
    7,305.31x = 10,954.07 × 3,791.78
  4. Step 4: Simplify right side
    7,305.31x = 41,535,404.59
  5. Step 5: Solve for x
    x = 41,535,404.59/7,305.31
  6. Step 6: Final answer
    x = 5,685.65

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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.