Home / 3,212.92-4,819.31-1,481.55

Finding the Fourth Proportional to 3,212.92, 4,819.31 and 1,481.55

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Solution

The fourth proportional to 3,212.92, 4,819.31 and 1,481.55 is: 2,222.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.92 : 4,819.31 = 1,481.55 : x
  2. Step 2: Convert to fraction form
    3,212.92/4,819.31 = 1,481.55/x
  3. Step 3: Cross multiply
    3,212.92x = 4,819.31 × 1,481.55
  4. Step 4: Simplify right side
    3,212.92x = 7,140,048.73
  5. Step 5: Solve for x
    x = 7,140,048.73/3,212.92
  6. Step 6: Final answer
    x = 2,222.29

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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.