Home / 3,230.60-4,432.59-3,147.68

Finding the Fourth Proportional to 3,230.60, 4,432.59 and 3,147.68

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Solution

The fourth proportional to 3,230.60, 4,432.59 and 3,147.68 is: 4,318.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,230.60 : 4,432.59 = 3,147.68 : x
  2. Step 2: Convert to fraction form
    3,230.60/4,432.59 = 3,147.68/x
  3. Step 3: Cross multiply
    3,230.60x = 4,432.59 × 3,147.68
  4. Step 4: Simplify right side
    3,230.60x = 13,952,359.15
  5. Step 5: Solve for x
    x = 13,952,359.15/3,230.60
  6. Step 6: Final answer
    x = 4,318.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.