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Finding the Fourth Proportional to 2,481.25, 3,424.13 and 1,377.25

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Solution

The fourth proportional to 2,481.25, 3,424.13 and 1,377.25 is: 1,900.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,481.25 : 3,424.13 = 1,377.25 : x
  2. Step 2: Convert to fraction form
    2,481.25/3,424.13 = 1,377.25/x
  3. Step 3: Cross multiply
    2,481.25x = 3,424.13 × 1,377.25
  4. Step 4: Simplify right side
    2,481.25x = 4,715,876.16
  5. Step 5: Solve for x
    x = 4,715,876.16/2,481.25
  6. Step 6: Final answer
    x = 1,900.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.