Home / 8,979.75-13,469.31-2,739.51

Finding the Fourth Proportional to 8,979.75, 13,469.31 and 2,739.51

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Solution

The fourth proportional to 8,979.75, 13,469.31 and 2,739.51 is: 4,109.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.75 : 13,469.31 = 2,739.51 : x
  2. Step 2: Convert to fraction form
    8,979.75/13,469.31 = 2,739.51/x
  3. Step 3: Cross multiply
    8,979.75x = 13,469.31 × 2,739.51
  4. Step 4: Simplify right side
    8,979.75x = 36,899,309.44
  5. Step 5: Solve for x
    x = 36,899,309.44/8,979.75
  6. Step 6: Final answer
    x = 4,109.17

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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.