Home / 3,211.92-4,819.68-1,263.96

Finding the Fourth Proportional to 3,211.92, 4,819.68 and 1,263.96

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Solution

The fourth proportional to 3,211.92, 4,819.68 and 1,263.96 is: 1,896.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.92 : 4,819.68 = 1,263.96 : x
  2. Step 2: Convert to fraction form
    3,211.92/4,819.68 = 1,263.96/x
  3. Step 3: Cross multiply
    3,211.92x = 4,819.68 × 1,263.96
  4. Step 4: Simplify right side
    3,211.92x = 6,091,882.73
  5. Step 5: Solve for x
    x = 6,091,882.73/3,211.92
  6. Step 6: Final answer
    x = 1,896.65

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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.