Home / 3,976.62-5,966.04-1,379.22

Finding the Fourth Proportional to 3,976.62, 5,966.04 and 1,379.22

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Solution

The fourth proportional to 3,976.62, 5,966.04 and 1,379.22 is: 2,069.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976.62 : 5,966.04 = 1,379.22 : x
  2. Step 2: Convert to fraction form
    3,976.62/5,966.04 = 1,379.22/x
  3. Step 3: Cross multiply
    3,976.62x = 5,966.04 × 1,379.22
  4. Step 4: Simplify right side
    3,976.62x = 8,228,481.69
  5. Step 5: Solve for x
    x = 8,228,481.69/3,976.62
  6. Step 6: Final answer
    x = 2,069.21

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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.