Home / 3,982.39-5,971.21-1,517.38

Finding the Fourth Proportional to 3,982.39, 5,971.21 and 1,517.38

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Solution

The fourth proportional to 3,982.39, 5,971.21 and 1,517.38 is: 2,275.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982.39 : 5,971.21 = 1,517.38 : x
  2. Step 2: Convert to fraction form
    3,982.39/5,971.21 = 1,517.38/x
  3. Step 3: Cross multiply
    3,982.39x = 5,971.21 × 1,517.38
  4. Step 4: Simplify right side
    3,982.39x = 9,060,575.91
  5. Step 5: Solve for x
    x = 9,060,575.91/3,982.39
  6. Step 6: Final answer
    x = 2,275.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.