Home / 5,175.90-7,760.21-2,255.04

Finding the Fourth Proportional to 5,175.90, 7,760.21 and 2,255.04

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Solution

The fourth proportional to 5,175.90, 7,760.21 and 2,255.04 is: 3,380.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175.90 : 7,760.21 = 2,255.04 : x
  2. Step 2: Convert to fraction form
    5,175.90/7,760.21 = 2,255.04/x
  3. Step 3: Cross multiply
    5,175.90x = 7,760.21 × 2,255.04
  4. Step 4: Simplify right side
    5,175.90x = 17,499,572.68
  5. Step 5: Solve for x
    x = 17,499,572.68/5,175.90
  6. Step 6: Final answer
    x = 3,380.97

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1.5x scale

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.