Home / 2,231.31-3,348.14-1,308.68

Finding the Fourth Proportional to 2,231.31, 3,348.14 and 1,308.68

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Solution

The fourth proportional to 2,231.31, 3,348.14 and 1,308.68 is: 1,963.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,231.31 : 3,348.14 = 1,308.68 : x
  2. Step 2: Convert to fraction form
    2,231.31/3,348.14 = 1,308.68/x
  3. Step 3: Cross multiply
    2,231.31x = 3,348.14 × 1,308.68
  4. Step 4: Simplify right side
    2,231.31x = 4,381,620.57
  5. Step 5: Solve for x
    x = 4,381,620.57/2,231.31
  6. Step 6: Final answer
    x = 1,963.70

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1.5x scale

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.