Home / 3,788.31-5,683.36-1,191.25

Finding the Fourth Proportional to 3,788.31, 5,683.36 and 1,191.25

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Solution

The fourth proportional to 3,788.31, 5,683.36 and 1,191.25 is: 1,787.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,788.31 : 5,683.36 = 1,191.25 : x
  2. Step 2: Convert to fraction form
    3,788.31/5,683.36 = 1,191.25/x
  3. Step 3: Cross multiply
    3,788.31x = 5,683.36 × 1,191.25
  4. Step 4: Simplify right side
    3,788.31x = 6,770,286.90
  5. Step 5: Solve for x
    x = 6,770,286.90/3,788.31
  6. Step 6: Final answer
    x = 1,787.15

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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.