Home / 3,960.92-5,465.72-2,192.09

Finding the Fourth Proportional to 3,960.92, 5,465.72 and 2,192.09

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Solution

The fourth proportional to 3,960.92, 5,465.72 and 2,192.09 is: 3,024.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.92 : 5,465.72 = 2,192.09 : x
  2. Step 2: Convert to fraction form
    3,960.92/5,465.72 = 2,192.09/x
  3. Step 3: Cross multiply
    3,960.92x = 5,465.72 × 2,192.09
  4. Step 4: Simplify right side
    3,960.92x = 11,981,311.87
  5. Step 5: Solve for x
    x = 11,981,311.87/3,960.92
  6. Step 6: Final answer
    x = 3,024.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.