Home / 3,998.21-5,517.59-2,229.62

Finding the Fourth Proportional to 3,998.21, 5,517.59 and 2,229.62

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Solution

The fourth proportional to 3,998.21, 5,517.59 and 2,229.62 is: 3,076.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998.21 : 5,517.59 = 2,229.62 : x
  2. Step 2: Convert to fraction form
    3,998.21/5,517.59 = 2,229.62/x
  3. Step 3: Cross multiply
    3,998.21x = 5,517.59 × 2,229.62
  4. Step 4: Simplify right side
    3,998.21x = 12,302,107.00
  5. Step 5: Solve for x
    x = 12,302,107.00/3,998.21
  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.