Home / 1,343.97-2,015.96-1,257.85

Finding the Fourth Proportional to 1,343.97, 2,015.96 and 1,257.85

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Solution

The fourth proportional to 1,343.97, 2,015.96 and 1,257.85 is: 1,886.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343.97 : 2,015.96 = 1,257.85 : x
  2. Step 2: Convert to fraction form
    1,343.97/2,015.96 = 1,257.85/x
  3. Step 3: Cross multiply
    1,343.97x = 2,015.96 × 1,257.85
  4. Step 4: Simplify right side
    1,343.97x = 2,535,787.80
  5. Step 5: Solve for x
    x = 2,535,787.80/1,343.97
  6. Step 6: Final answer
    x = 1,886.79

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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.