Home / 3,630.97-5,432.28-3,188.71

Finding the Fourth Proportional to 3,630.97, 5,432.28 and 3,188.71

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Solution

The fourth proportional to 3,630.97, 5,432.28 and 3,188.71 is: 4,770.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.97 : 5,432.28 = 3,188.71 : x
  2. Step 2: Convert to fraction form
    3,630.97/5,432.28 = 3,188.71/x
  3. Step 3: Cross multiply
    3,630.97x = 5,432.28 × 3,188.71
  4. Step 4: Simplify right side
    3,630.97x = 17,321,965.56
  5. Step 5: Solve for x
    x = 17,321,965.56/3,630.97
  6. Step 6: Final answer
    x = 4,770.62

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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.