Home / 3,983.78-5,974.46-3,687.32

Finding the Fourth Proportional to 3,983.78, 5,974.46 and 3,687.32

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Solution

The fourth proportional to 3,983.78, 5,974.46 and 3,687.32 is: 5,529.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,983.78 : 5,974.46 = 3,687.32 : x
  2. Step 2: Convert to fraction form
    3,983.78/5,974.46 = 3,687.32/x
  3. Step 3: Cross multiply
    3,983.78x = 5,974.46 × 3,687.32
  4. Step 4: Simplify right side
    3,983.78x = 22,029,756.17
  5. Step 5: Solve for x
    x = 22,029,756.17/3,983.78
  6. Step 6: Final answer
    x = 5,529.86

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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.