Home / 2,489.68-3,735.33-1,191.25

Finding the Fourth Proportional to 2,489.68, 3,735.33 and 1,191.25

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Solution

The fourth proportional to 2,489.68, 3,735.33 and 1,191.25 is: 1,787.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.68 : 3,735.33 = 1,191.25 : x
  2. Step 2: Convert to fraction form
    2,489.68/3,735.33 = 1,191.25/x
  3. Step 3: Cross multiply
    2,489.68x = 3,735.33 × 1,191.25
  4. Step 4: Simplify right side
    2,489.68x = 4,449,711.86
  5. Step 5: Solve for x
    x = 4,449,711.86/2,489.68
  6. Step 6: Final answer
    x = 1,787.26

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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.