Home / 3,998.31-5,517.68-2,230.03

Finding the Fourth Proportional to 3,998.31, 5,517.68 and 2,230.03

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Solution

The fourth proportional to 3,998.31, 5,517.68 and 2,230.03 is: 3,077.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998.31 : 5,517.68 = 2,230.03 : x
  2. Step 2: Convert to fraction form
    3,998.31/5,517.68 = 2,230.03/x
  3. Step 3: Cross multiply
    3,998.31x = 5,517.68 × 2,230.03
  4. Step 4: Simplify right side
    3,998.31x = 12,304,586.36
  5. Step 5: Solve for x
    x = 12,304,586.36/3,998.31
  6. Step 6: Final answer
    x = 3,077.45

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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.