Home / 3,201.75-4,418.42-1,729.75

Finding the Fourth Proportional to 3,201.75, 4,418.42 and 1,729.75

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Solution

The fourth proportional to 3,201.75, 4,418.42 and 1,729.75 is: 2,387.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,201.75 : 4,418.42 = 1,729.75 : x
  2. Step 2: Convert to fraction form
    3,201.75/4,418.42 = 1,729.75/x
  3. Step 3: Cross multiply
    3,201.75x = 4,418.42 × 1,729.75
  4. Step 4: Simplify right side
    3,201.75x = 7,642,753.35
  5. Step 5: Solve for x
    x = 7,642,753.35/3,201.75
  6. Step 6: Final answer
    x = 2,387.06

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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.