Home / 3,982.83-5,976.64-1,387.59

Finding the Fourth Proportional to 3,982.83, 5,976.64 and 1,387.59

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Solution

The fourth proportional to 3,982.83, 5,976.64 and 1,387.59 is: 2,082.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982.83 : 5,976.64 = 1,387.59 : x
  2. Step 2: Convert to fraction form
    3,982.83/5,976.64 = 1,387.59/x
  3. Step 3: Cross multiply
    3,982.83x = 5,976.64 × 1,387.59
  4. Step 4: Simplify right side
    3,982.83x = 8,293,125.90
  5. Step 5: Solve for x
    x = 8,293,125.90/3,982.83
  6. Step 6: Final answer
    x = 2,082.22

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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.