Home / 8,979.60-13,470.82-2,738.18

Finding the Fourth Proportional to 8,979.60, 13,470.82 and 2,738.18

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Solution

The fourth proportional to 8,979.60, 13,470.82 and 2,738.18 is: 4,107.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.60 : 13,470.82 = 2,738.18 : x
  2. Step 2: Convert to fraction form
    8,979.60/13,470.82 = 2,738.18/x
  3. Step 3: Cross multiply
    8,979.60x = 13,470.82 × 2,738.18
  4. Step 4: Simplify right side
    8,979.60x = 36,885,556.74
  5. Step 5: Solve for x
    x = 36,885,556.74/8,979.60
  6. Step 6: Final answer
    x = 4,107.71

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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.