Home / 3,297.28-4,553.30-2,120.38

Finding the Fourth Proportional to 3,297.28, 4,553.30 and 2,120.38

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Solution

The fourth proportional to 3,297.28, 4,553.30 and 2,120.38 is: 2,928.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,297.28 : 4,553.30 = 2,120.38 : x
  2. Step 2: Convert to fraction form
    3,297.28/4,553.30 = 2,120.38/x
  3. Step 3: Cross multiply
    3,297.28x = 4,553.30 × 2,120.38
  4. Step 4: Simplify right side
    3,297.28x = 9,654,726.25
  5. Step 5: Solve for x
    x = 9,654,726.25/3,297.28
  6. Step 6: Final answer
    x = 2,928.09

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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.