Home / 3,772.11-5,659.29-2,129.79

Finding the Fourth Proportional to 3,772.11, 5,659.29 and 2,129.79

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Solution

The fourth proportional to 3,772.11, 5,659.29 and 2,129.79 is: 3,195.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,772.11 : 5,659.29 = 2,129.79 : x
  2. Step 2: Convert to fraction form
    3,772.11/5,659.29 = 2,129.79/x
  3. Step 3: Cross multiply
    3,772.11x = 5,659.29 × 2,129.79
  4. Step 4: Simplify right side
    3,772.11x = 12,053,099.25
  5. Step 5: Solve for x
    x = 12,053,099.25/3,772.11
  6. Step 6: Final answer
    x = 3,195.32

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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.