Home / 3,186.30-4,787.55-2,829.90

Finding the Fourth Proportional to 3,186.30, 4,787.55 and 2,829.90

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Solution

The fourth proportional to 3,186.30, 4,787.55 and 2,829.90 is: 4,252.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.30 : 4,787.55 = 2,829.90 : x
  2. Step 2: Convert to fraction form
    3,186.30/4,787.55 = 2,829.90/x
  3. Step 3: Cross multiply
    3,186.30x = 4,787.55 × 2,829.90
  4. Step 4: Simplify right side
    3,186.30x = 13,548,287.75
  5. Step 5: Solve for x
    x = 13,548,287.75/3,186.30
  6. Step 6: Final answer
    x = 4,252.04

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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.