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Finding the Fourth Proportional to 2,452.97, 3,679.46 and 722.81

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Solution

The fourth proportional to 2,452.97, 3,679.46 and 722.81 is: 1,084.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,452.97 : 3,679.46 = 722.81 : x
  2. Step 2: Convert to fraction form
    2,452.97/3,679.46 = 722.81/x
  3. Step 3: Cross multiply
    2,452.97x = 3,679.46 × 722.81
  4. Step 4: Simplify right side
    2,452.97x = 2,659,550.48
  5. Step 5: Solve for x
    x = 2,659,550.48/2,452.97
  6. Step 6: Final answer
    x = 1,084.22

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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.