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Finding the Third Proportional to 2,928.75 and 5,481.75

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Solution

The third proportional to 2,928.75 and 5,481.75 is: 10,260.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.75 : 5,481.75 = 5,481.75 : x
  2. Step 2: Convert to fraction form
    2,928.75/5,481.75 = 5,481.75/x
  3. Step 3: Cross multiply
    2,928.75x = 5,481.75 × 5,481.75
  4. Step 4: Simplify right side
    2,928.75x = 30,049,583.06
  5. Step 5: Solve for x
    x = 30,049,583.06/2,928.75
  6. Step 6: Final answer
    x = 10,260.21

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Why These Related Problems?

These problems maintain the same ratio (1.87) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.