Home / 2,398.29-3,591.32-1,912.05

Finding the Fourth Proportional to 2,398.29, 3,591.32 and 1,912.05

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Solution

The fourth proportional to 2,398.29, 3,591.32 and 1,912.05 is: 2,863.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,398.29 : 3,591.32 = 1,912.05 : x
  2. Step 2: Convert to fraction form
    2,398.29/3,591.32 = 1,912.05/x
  3. Step 3: Cross multiply
    2,398.29x = 3,591.32 × 1,912.05
  4. Step 4: Simplify right side
    2,398.29x = 6,866,773.85
  5. Step 5: Solve for x
    x = 6,866,773.85/2,398.29
  6. Step 6: Final answer
    x = 2,863.20

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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.