Home / 3,982.23-5,976.07-1,385.17

Finding the Fourth Proportional to 3,982.23, 5,976.07 and 1,385.17

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Solution

The fourth proportional to 3,982.23, 5,976.07 and 1,385.17 is: 2,078.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982.23 : 5,976.07 = 1,385.17 : x
  2. Step 2: Convert to fraction form
    3,982.23/5,976.07 = 1,385.17/x
  3. Step 3: Cross multiply
    3,982.23x = 5,976.07 × 1,385.17
  4. Step 4: Simplify right side
    3,982.23x = 8,277,854.48
  5. Step 5: Solve for x
    x = 8,277,854.48/3,982.23
  6. Step 6: Final answer
    x = 2,078.70

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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.