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Finding the Fourth Proportional to 7,189.52, 10,787.70 and 3,726.76

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Solution

The fourth proportional to 7,189.52, 10,787.70 and 3,726.76 is: 5,591.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,189.52 : 10,787.70 = 3,726.76 : x
  2. Step 2: Convert to fraction form
    7,189.52/10,787.70 = 3,726.76/x
  3. Step 3: Cross multiply
    7,189.52x = 10,787.70 × 3,726.76
  4. Step 4: Simplify right side
    7,189.52x = 40,203,168.85
  5. Step 5: Solve for x
    x = 40,203,168.85/7,189.52
  6. Step 6: Final answer
    x = 5,591.91

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1.5x scale

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.