Home / 3,251.68-4,487.70-3,149.62

Finding the Fourth Proportional to 3,251.68, 4,487.70 and 3,149.62

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Solution

The fourth proportional to 3,251.68, 4,487.70 and 3,149.62 is: 4,346.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,251.68 : 4,487.70 = 3,149.62 : x
  2. Step 2: Convert to fraction form
    3,251.68/4,487.70 = 3,149.62/x
  3. Step 3: Cross multiply
    3,251.68x = 4,487.70 × 3,149.62
  4. Step 4: Simplify right side
    3,251.68x = 14,134,549.67
  5. Step 5: Solve for x
    x = 14,134,549.67/3,251.68
  6. Step 6: Final answer
    x = 4,346.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.