Home / 4,331.28-6,494.76-1,990.56

Finding the Fourth Proportional to 4,331.28, 6,494.76 and 1,990.56

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Solution

The fourth proportional to 4,331.28, 6,494.76 and 1,990.56 is: 2,984.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,331.28 : 6,494.76 = 1,990.56 : x
  2. Step 2: Convert to fraction form
    4,331.28/6,494.76 = 1,990.56/x
  3. Step 3: Cross multiply
    4,331.28x = 6,494.76 × 1,990.56
  4. Step 4: Simplify right side
    4,331.28x = 12,928,209.47
  5. Step 5: Solve for x
    x = 12,928,209.47/4,331.28
  6. Step 6: Final answer
    x = 2,984.85

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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.