Home / 8,979.16-13,470.76-2,739.72

Finding the Fourth Proportional to 8,979.16, 13,470.76 and 2,739.72

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Solution

The fourth proportional to 8,979.16, 13,470.76 and 2,739.72 is: 4,110.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.16 : 13,470.76 = 2,739.72 : x
  2. Step 2: Convert to fraction form
    8,979.16/13,470.76 = 2,739.72/x
  3. Step 3: Cross multiply
    8,979.16x = 13,470.76 × 2,739.72
  4. Step 4: Simplify right side
    8,979.16x = 36,906,110.59
  5. Step 5: Solve for x
    x = 36,906,110.59/8,979.16
  6. Step 6: Final answer
    x = 4,110.20

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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.