Home / 2,251.42-3,375.65-1,081.39

Finding the Fourth Proportional to 2,251.42, 3,375.65 and 1,081.39

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Solution

The fourth proportional to 2,251.42, 3,375.65 and 1,081.39 is: 1,621.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,251.42 : 3,375.65 = 1,081.39 : x
  2. Step 2: Convert to fraction form
    2,251.42/3,375.65 = 1,081.39/x
  3. Step 3: Cross multiply
    2,251.42x = 3,375.65 × 1,081.39
  4. Step 4: Simplify right side
    2,251.42x = 3,650,394.15
  5. Step 5: Solve for x
    x = 3,650,394.15/2,251.42
  6. Step 6: Final answer
    x = 1,621.37

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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.