Home / 3,979.73-5,489.93-2,363.72

Finding the Fourth Proportional to 3,979.73, 5,489.93 and 2,363.72

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Solution

The fourth proportional to 3,979.73, 5,489.93 and 2,363.72 is: 3,260.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.73 : 5,489.93 = 2,363.72 : x
  2. Step 2: Convert to fraction form
    3,979.73/5,489.93 = 2,363.72/x
  3. Step 3: Cross multiply
    3,979.73x = 5,489.93 × 2,363.72
  4. Step 4: Simplify right side
    3,979.73x = 12,976,635.80
  5. Step 5: Solve for x
    x = 12,976,635.80/3,979.73
  6. Step 6: Final answer
    x = 3,260.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.