Home / 3,229.20-4,843.80-2,189.70

Finding the Fourth Proportional to 3,229.20, 4,843.80 and 2,189.70

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Solution

The fourth proportional to 3,229.20, 4,843.80 and 2,189.70 is: 3,284.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,229.20 : 4,843.80 = 2,189.70 : x
  2. Step 2: Convert to fraction form
    3,229.20/4,843.80 = 2,189.70/x
  3. Step 3: Cross multiply
    3,229.20x = 4,843.80 × 2,189.70
  4. Step 4: Simplify right side
    3,229.20x = 10,606,468.86
  5. Step 5: Solve for x
    x = 10,606,468.86/3,229.20
  6. Step 6: Final answer
    x = 3,284.55

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Similar ratio
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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.