Home / 7,078.66-10,611.92-3,956.11

Finding the Fourth Proportional to 7,078.66, 10,611.92 and 3,956.11

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Solution

The fourth proportional to 7,078.66, 10,611.92 and 3,956.11 is: 5,930.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,078.66 : 10,611.92 = 3,956.11 : x
  2. Step 2: Convert to fraction form
    7,078.66/10,611.92 = 3,956.11/x
  3. Step 3: Cross multiply
    7,078.66x = 10,611.92 × 3,956.11
  4. Step 4: Simplify right side
    7,078.66x = 41,981,965.88
  5. Step 5: Solve for x
    x = 41,981,965.88/7,078.66
  6. Step 6: Final answer
    x = 5,930.78

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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.