Home / 5,276.78-7,912.20-3,169.04

Finding the Fourth Proportional to 5,276.78, 7,912.20 and 3,169.04

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Solution

The fourth proportional to 5,276.78, 7,912.20 and 3,169.04 is: 4,751.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.78 : 7,912.20 = 3,169.04 : x
  2. Step 2: Convert to fraction form
    5,276.78/7,912.20 = 3,169.04/x
  3. Step 3: Cross multiply
    5,276.78x = 7,912.20 × 3,169.04
  4. Step 4: Simplify right side
    5,276.78x = 25,074,078.29
  5. Step 5: Solve for x
    x = 25,074,078.29/5,276.78
  6. Step 6: Final answer
    x = 4,751.78

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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.