Home / 4,787.40-7,181.10-3,693.90

Finding the Fourth Proportional to 4,787.40, 7,181.10 and 3,693.90

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Solution

The fourth proportional to 4,787.40, 7,181.10 and 3,693.90 is: 5,540.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,787.40 : 7,181.10 = 3,693.90 : x
  2. Step 2: Convert to fraction form
    4,787.40/7,181.10 = 3,693.90/x
  3. Step 3: Cross multiply
    4,787.40x = 7,181.10 × 3,693.90
  4. Step 4: Simplify right side
    4,787.40x = 26,526,265.29
  5. Step 5: Solve for x
    x = 26,526,265.29/4,787.40
  6. Step 6: Final answer
    x = 5,540.85

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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.