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Finding the Fourth Proportional to 3,936.02, 5,901.14 and 1,854.85

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Solution

The fourth proportional to 3,936.02, 5,901.14 and 1,854.85 is: 2,780.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936.02 : 5,901.14 = 1,854.85 : x
  2. Step 2: Convert to fraction form
    3,936.02/5,901.14 = 1,854.85/x
  3. Step 3: Cross multiply
    3,936.02x = 5,901.14 × 1,854.85
  4. Step 4: Simplify right side
    3,936.02x = 10,945,729.53
  5. Step 5: Solve for x
    x = 10,945,729.53/3,936.02
  6. Step 6: Final answer
    x = 2,780.91

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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.