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Finding the Fourth Proportional to 2,400.52, 3,600.78 and 940.09

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Solution

The fourth proportional to 2,400.52, 3,600.78 and 940.09 is: 1,410.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,400.52 : 3,600.78 = 940.09 : x
  2. Step 2: Convert to fraction form
    2,400.52/3,600.78 = 940.09/x
  3. Step 3: Cross multiply
    2,400.52x = 3,600.78 × 940.09
  4. Step 4: Simplify right side
    2,400.52x = 3,385,034.57
  5. Step 5: Solve for x
    x = 3,385,034.57/2,400.52
  6. Step 6: Final answer
    x = 1,410.13

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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.