Home / 7,399.75-11,101.19-2,469.78

Finding the Fourth Proportional to 7,399.75, 11,101.19 and 2,469.78

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Solution

The fourth proportional to 7,399.75, 11,101.19 and 2,469.78 is: 3,705.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,399.75 : 11,101.19 = 2,469.78 : x
  2. Step 2: Convert to fraction form
    7,399.75/11,101.19 = 2,469.78/x
  3. Step 3: Cross multiply
    7,399.75x = 11,101.19 × 2,469.78
  4. Step 4: Simplify right side
    7,399.75x = 27,417,497.04
  5. Step 5: Solve for x
    x = 27,417,497.04/7,399.75
  6. Step 6: Final answer
    x = 3,705.19

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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.