Home / 3,231.82-4,452.33-2,638.90

Finding the Fourth Proportional to 3,231.82, 4,452.33 and 2,638.90

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Solution

The fourth proportional to 3,231.82, 4,452.33 and 2,638.90 is: 3,635.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231.82 : 4,452.33 = 2,638.90 : x
  2. Step 2: Convert to fraction form
    3,231.82/4,452.33 = 2,638.90/x
  3. Step 3: Cross multiply
    3,231.82x = 4,452.33 × 2,638.90
  4. Step 4: Simplify right side
    3,231.82x = 11,749,253.64
  5. Step 5: Solve for x
    x = 11,749,253.64/3,231.82
  6. Step 6: Final answer
    x = 3,635.49

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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.