Home / 3,998.22-5,517.14-2,320.18

Finding the Fourth Proportional to 3,998.22, 5,517.14 and 2,320.18

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Solution

The fourth proportional to 3,998.22, 5,517.14 and 2,320.18 is: 3,201.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998.22 : 5,517.14 = 2,320.18 : x
  2. Step 2: Convert to fraction form
    3,998.22/5,517.14 = 2,320.18/x
  3. Step 3: Cross multiply
    3,998.22x = 5,517.14 × 2,320.18
  4. Step 4: Simplify right side
    3,998.22x = 12,800,757.89
  5. Step 5: Solve for x
    x = 12,800,757.89/3,998.22
  6. Step 6: Final answer
    x = 3,201.61

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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.