Home / 3,976-5,963.20-1,379.04

Finding the Fourth Proportional to 3,976, 5,963.20 and 1,379.04

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Solution

The fourth proportional to 3,976, 5,963.20 and 1,379.04 is: 2,068.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976 : 5,963.20 = 1,379.04 : x
  2. Step 2: Convert to fraction form
    3,976/5,963.20 = 1,379.04/x
  3. Step 3: Cross multiply
    3,976x = 5,963.20 × 1,379.04
  4. Step 4: Simplify right side
    3,976x = 8,223,491.33
  5. Step 5: Solve for x
    x = 8,223,491.33/3,976
  6. Step 6: Final answer
    x = 2,068.28

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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.