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Finding the Third Proportional to 2,828.25 and 6,243.75

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Solution

The third proportional to 2,828.25 and 6,243.75 is: 13,783.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,828.25 : 6,243.75 = 6,243.75 : x
  2. Step 2: Convert to fraction form
    2,828.25/6,243.75 = 6,243.75/x
  3. Step 3: Cross multiply
    2,828.25x = 6,243.75 × 6,243.75
  4. Step 4: Simplify right side
    2,828.25x = 38,984,414.06
  5. Step 5: Solve for x
    x = 38,984,414.06/2,828.25
  6. Step 6: Final answer
    x = 13,783.93

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.