Home / 3,787.39-5,679.56-2,227.78

Finding the Fourth Proportional to 3,787.39, 5,679.56 and 2,227.78

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Solution

The fourth proportional to 3,787.39, 5,679.56 and 2,227.78 is: 3,340.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.39 : 5,679.56 = 2,227.78 : x
  2. Step 2: Convert to fraction form
    3,787.39/5,679.56 = 2,227.78/x
  3. Step 3: Cross multiply
    3,787.39x = 5,679.56 × 2,227.78
  4. Step 4: Simplify right side
    3,787.39x = 12,652,801.55
  5. Step 5: Solve for x
    x = 12,652,801.55/3,787.39
  6. Step 6: Final answer
    x = 3,340.77

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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.