Home / 2,735.60-4,104.12-787.76

Finding the Fourth Proportional to 2,735.60, 4,104.12 and 787.76

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Solution

The fourth proportional to 2,735.60, 4,104.12 and 787.76 is: 1,181.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,735.60 : 4,104.12 = 787.76 : x
  2. Step 2: Convert to fraction form
    2,735.60/4,104.12 = 787.76/x
  3. Step 3: Cross multiply
    2,735.60x = 4,104.12 × 787.76
  4. Step 4: Simplify right side
    2,735.60x = 3,233,061.57
  5. Step 5: Solve for x
    x = 3,233,061.57/2,735.60
  6. Step 6: Final answer
    x = 1,181.85

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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.