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Finding the Fourth Proportional to 3,489.80, 5,232.94 and 1,149.71

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Solution

The fourth proportional to 3,489.80, 5,232.94 and 1,149.71 is: 1,723.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.80 : 5,232.94 = 1,149.71 : x
  2. Step 2: Convert to fraction form
    3,489.80/5,232.94 = 1,149.71/x
  3. Step 3: Cross multiply
    3,489.80x = 5,232.94 × 1,149.71
  4. Step 4: Simplify right side
    3,489.80x = 6,016,334.41
  5. Step 5: Solve for x
    x = 6,016,334.41/3,489.80
  6. Step 6: Final answer
    x = 1,723.98

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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.