Home / 3,221.22-4,825.42-2,122.25

Finding the Fourth Proportional to 3,221.22, 4,825.42 and 2,122.25

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Solution

The fourth proportional to 3,221.22, 4,825.42 and 2,122.25 is: 3,179.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.22 : 4,825.42 = 2,122.25 : x
  2. Step 2: Convert to fraction form
    3,221.22/4,825.42 = 2,122.25/x
  3. Step 3: Cross multiply
    3,221.22x = 4,825.42 × 2,122.25
  4. Step 4: Simplify right side
    3,221.22x = 10,240,757.24
  5. Step 5: Solve for x
    x = 10,240,757.24/3,221.22
  6. Step 6: Final answer
    x = 3,179.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.