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Finding the Fourth Proportional to 7,280.97, 10,921.46 and 3,383.25

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Solution

The fourth proportional to 7,280.97, 10,921.46 and 3,383.25 is: 5,074.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,280.97 : 10,921.46 = 3,383.25 : x
  2. Step 2: Convert to fraction form
    7,280.97/10,921.46 = 3,383.25/x
  3. Step 3: Cross multiply
    7,280.97x = 10,921.46 × 3,383.25
  4. Step 4: Simplify right side
    7,280.97x = 36,950,012.63
  5. Step 5: Solve for x
    x = 36,950,012.63/7,280.97
  6. Step 6: Final answer
    x = 5,074.88

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Similar ratio
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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.