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Finding the Fourth Proportional to 2,481.42, 3,722.67 and 750

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Solution

The fourth proportional to 2,481.42, 3,722.67 and 750 is: 1,125.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,481.42 : 3,722.67 = 750 : x
  2. Step 2: Convert to fraction form
    2,481.42/3,722.67 = 750/x
  3. Step 3: Cross multiply
    2,481.42x = 3,722.67 × 750
  4. Step 4: Simplify right side
    2,481.42x = 2,792,002.50
  5. Step 5: Solve for x
    x = 2,792,002.50/2,481.42
  6. Step 6: Final answer
    x = 1,125.16

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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.