Home / 3,231.22-4,458.82-1,972.48

Finding the Fourth Proportional to 3,231.22, 4,458.82 and 1,972.48

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Solution

The fourth proportional to 3,231.22, 4,458.82 and 1,972.48 is: 2,721.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231.22 : 4,458.82 = 1,972.48 : x
  2. Step 2: Convert to fraction form
    3,231.22/4,458.82 = 1,972.48/x
  3. Step 3: Cross multiply
    3,231.22x = 4,458.82 × 1,972.48
  4. Step 4: Simplify right side
    3,231.22x = 8,794,922.26
  5. Step 5: Solve for x
    x = 8,794,922.26/3,231.22
  6. Step 6: Final answer
    x = 2,721.86

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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.