Home / 3,913.11-5,399.60-2,144.61

Finding the Fourth Proportional to 3,913.11, 5,399.60 and 2,144.61

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Solution

The fourth proportional to 3,913.11, 5,399.60 and 2,144.61 is: 2,959.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,913.11 : 5,399.60 = 2,144.61 : x
  2. Step 2: Convert to fraction form
    3,913.11/5,399.60 = 2,144.61/x
  3. Step 3: Cross multiply
    3,913.11x = 5,399.60 × 2,144.61
  4. Step 4: Simplify right side
    3,913.11x = 11,580,025.43
  5. Step 5: Solve for x
    x = 11,580,025.43/3,913.11
  6. Step 6: Final answer
    x = 2,959.29

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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.