Home / 3,225.90-4,453.11-2,179.38

Finding the Fourth Proportional to 3,225.90, 4,453.11 and 2,179.38

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Solution

The fourth proportional to 3,225.90, 4,453.11 and 2,179.38 is: 3,008.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,225.90 : 4,453.11 = 2,179.38 : x
  2. Step 2: Convert to fraction form
    3,225.90/4,453.11 = 2,179.38/x
  3. Step 3: Cross multiply
    3,225.90x = 4,453.11 × 2,179.38
  4. Step 4: Simplify right side
    3,225.90x = 9,705,024.56
  5. Step 5: Solve for x
    x = 9,705,024.56/3,225.90
  6. Step 6: Final answer
    x = 3,008.47

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Half scale
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Double scale
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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.