Home / 3,224.20-4,829.10-2,489.80

Finding the Fourth Proportional to 3,224.20, 4,829.10 and 2,489.80

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Solution

The fourth proportional to 3,224.20, 4,829.10 and 2,489.80 is: 3,729.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,224.20 : 4,829.10 = 2,489.80 : x
  2. Step 2: Convert to fraction form
    3,224.20/4,829.10 = 2,489.80/x
  3. Step 3: Cross multiply
    3,224.20x = 4,829.10 × 2,489.80
  4. Step 4: Simplify right side
    3,224.20x = 12,023,493.18
  5. Step 5: Solve for x
    x = 12,023,493.18/3,224.20
  6. Step 6: Final answer
    x = 3,729.14

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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.