Home / 4,175.20-6,255.60-3,440.80

Finding the Fourth Proportional to 4,175.20, 6,255.60 and 3,440.80

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Solution

The fourth proportional to 4,175.20, 6,255.60 and 3,440.80 is: 5,155.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,175.20 : 6,255.60 = 3,440.80 : x
  2. Step 2: Convert to fraction form
    4,175.20/6,255.60 = 3,440.80/x
  3. Step 3: Cross multiply
    4,175.20x = 6,255.60 × 3,440.80
  4. Step 4: Simplify right side
    4,175.20x = 21,524,268.48
  5. Step 5: Solve for x
    x = 21,524,268.48/4,175.20
  6. Step 6: Final answer
    x = 5,155.27

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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.