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Finding the Third Proportional to 2,112.75 and 4,564.69

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Solution

The third proportional to 2,112.75 and 4,564.69 is: 9,862.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,112.75 : 4,564.69 = 4,564.69 : x
  2. Step 2: Convert to fraction form
    2,112.75/4,564.69 = 4,564.69/x
  3. Step 3: Cross multiply
    2,112.75x = 4,564.69 × 4,564.69
  4. Step 4: Simplify right side
    2,112.75x = 20,836,371.97
  5. Step 5: Solve for x
    x = 20,836,371.97/2,112.75
  6. Step 6: Final answer
    x = 9,862.20

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.