Home / 3,197.20-4,410.80-2,149.60

Finding the Fourth Proportional to 3,197.20, 4,410.80 and 2,149.60

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Solution

The fourth proportional to 3,197.20, 4,410.80 and 2,149.60 is: 2,965.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,197.20 : 4,410.80 = 2,149.60 : x
  2. Step 2: Convert to fraction form
    3,197.20/4,410.80 = 2,149.60/x
  3. Step 3: Cross multiply
    3,197.20x = 4,410.80 × 2,149.60
  4. Step 4: Simplify right side
    3,197.20x = 9,481,455.68
  5. Step 5: Solve for x
    x = 9,481,455.68/3,197.20
  6. Step 6: Final answer
    x = 2,965.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.