Home / 3,998.34-5,517.77-2,230.11

Finding the Fourth Proportional to 3,998.34, 5,517.77 and 2,230.11

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Solution

The fourth proportional to 3,998.34, 5,517.77 and 2,230.11 is: 3,077.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998.34 : 5,517.77 = 2,230.11 : x
  2. Step 2: Convert to fraction form
    3,998.34/5,517.77 = 2,230.11/x
  3. Step 3: Cross multiply
    3,998.34x = 5,517.77 × 2,230.11
  4. Step 4: Simplify right side
    3,998.34x = 12,305,222.90
  5. Step 5: Solve for x
    x = 12,305,222.90/3,998.34
  6. Step 6: Final answer
    x = 3,077.58

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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.