Home / 3,217.97-4,819.46-3,129.30

Finding the Fourth Proportional to 3,217.97, 4,819.46 and 3,129.30

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Solution

The fourth proportional to 3,217.97, 4,819.46 and 3,129.30 is: 4,686.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217.97 : 4,819.46 = 3,129.30 : x
  2. Step 2: Convert to fraction form
    3,217.97/4,819.46 = 3,129.30/x
  3. Step 3: Cross multiply
    3,217.97x = 4,819.46 × 3,129.30
  4. Step 4: Simplify right side
    3,217.97x = 15,081,536.18
  5. Step 5: Solve for x
    x = 15,081,536.18/3,217.97
  6. Step 6: Final answer
    x = 4,686.66

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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.