Home / 3,517.88-4,854.68-2,190.80

Finding the Fourth Proportional to 3,517.88, 4,854.68 and 2,190.80

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Solution

The fourth proportional to 3,517.88, 4,854.68 and 2,190.80 is: 3,023.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,517.88 : 4,854.68 = 2,190.80 : x
  2. Step 2: Convert to fraction form
    3,517.88/4,854.68 = 2,190.80/x
  3. Step 3: Cross multiply
    3,517.88x = 4,854.68 × 2,190.80
  4. Step 4: Simplify right side
    3,517.88x = 10,635,627.36
  5. Step 5: Solve for x
    x = 10,635,627.36/3,517.88
  6. Step 6: Final answer
    x = 3,023.31

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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.