Home / 3,984.60-5,500.24-3,422.82

Finding the Fourth Proportional to 3,984.60, 5,500.24 and 3,422.82

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Solution

The fourth proportional to 3,984.60, 5,500.24 and 3,422.82 is: 4,724.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984.60 : 5,500.24 = 3,422.82 : x
  2. Step 2: Convert to fraction form
    3,984.60/5,500.24 = 3,422.82/x
  3. Step 3: Cross multiply
    3,984.60x = 5,500.24 × 3,422.82
  4. Step 4: Simplify right side
    3,984.60x = 18,826,331.48
  5. Step 5: Solve for x
    x = 18,826,331.48/3,984.60
  6. Step 6: Final answer
    x = 4,724.77

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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.