Home / 4,105.92-6,155.79-2,129.43

Finding the Fourth Proportional to 4,105.92, 6,155.79 and 2,129.43

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Solution

The fourth proportional to 4,105.92, 6,155.79 and 2,129.43 is: 3,192.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,105.92 : 6,155.79 = 2,129.43 : x
  2. Step 2: Convert to fraction form
    4,105.92/6,155.79 = 2,129.43/x
  3. Step 3: Cross multiply
    4,105.92x = 6,155.79 × 2,129.43
  4. Step 4: Simplify right side
    4,105.92x = 13,108,323.90
  5. Step 5: Solve for x
    x = 13,108,323.90/4,105.92
  6. Step 6: Final answer
    x = 3,192.54

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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.