Home / 2,092.54-3,138.62-1,270.60

Finding the Fourth Proportional to 2,092.54, 3,138.62 and 1,270.60

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Solution

The fourth proportional to 2,092.54, 3,138.62 and 1,270.60 is: 1,905.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,092.54 : 3,138.62 = 1,270.60 : x
  2. Step 2: Convert to fraction form
    2,092.54/3,138.62 = 1,270.60/x
  3. Step 3: Cross multiply
    2,092.54x = 3,138.62 × 1,270.60
  4. Step 4: Simplify right side
    2,092.54x = 3,987,930.57
  5. Step 5: Solve for x
    x = 3,987,930.57/2,092.54
  6. Step 6: Final answer
    x = 1,905.78

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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.