Home / 3,720.97-5,134.77-2,229.72

Finding the Fourth Proportional to 3,720.97, 5,134.77 and 2,229.72

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Solution

The fourth proportional to 3,720.97, 5,134.77 and 2,229.72 is: 3,076.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.97 : 5,134.77 = 2,229.72 : x
  2. Step 2: Convert to fraction form
    3,720.97/5,134.77 = 2,229.72/x
  3. Step 3: Cross multiply
    3,720.97x = 5,134.77 × 2,229.72
  4. Step 4: Simplify right side
    3,720.97x = 11,449,099.36
  5. Step 5: Solve for x
    x = 11,449,099.36/3,720.97
  6. Step 6: Final answer
    x = 3,076.91

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1.5x scale

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.