Home / 3,976.92-5,966.37-1,379.79

Finding the Fourth Proportional to 3,976.92, 5,966.37 and 1,379.79

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Solution

The fourth proportional to 3,976.92, 5,966.37 and 1,379.79 is: 2,070.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976.92 : 5,966.37 = 1,379.79 : x
  2. Step 2: Convert to fraction form
    3,976.92/5,966.37 = 1,379.79/x
  3. Step 3: Cross multiply
    3,976.92x = 5,966.37 × 1,379.79
  4. Step 4: Simplify right side
    3,976.92x = 8,232,337.66
  5. Step 5: Solve for x
    x = 8,232,337.66/3,976.92
  6. Step 6: Final answer
    x = 2,070.03

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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.