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Finding the Fourth Proportional to 2,489.54, 3,735.16 and 1,255.93

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Solution

The fourth proportional to 2,489.54, 3,735.16 and 1,255.93 is: 1,884.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.54 : 3,735.16 = 1,255.93 : x
  2. Step 2: Convert to fraction form
    2,489.54/3,735.16 = 1,255.93/x
  3. Step 3: Cross multiply
    2,489.54x = 3,735.16 × 1,255.93
  4. Step 4: Simplify right side
    2,489.54x = 4,691,087.02
  5. Step 5: Solve for x
    x = 4,691,087.02/2,489.54
  6. Step 6: Final answer
    x = 1,884.32

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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.