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Finding the Third Proportional to 4,220.25 and 6,705.75

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Solution

The third proportional to 4,220.25 and 6,705.75 is: 10,655.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,220.25 : 6,705.75 = 6,705.75 : x
  2. Step 2: Convert to fraction form
    4,220.25/6,705.75 = 6,705.75/x
  3. Step 3: Cross multiply
    4,220.25x = 6,705.75 × 6,705.75
  4. Step 4: Simplify right side
    4,220.25x = 44,967,083.06
  5. Step 5: Solve for x
    x = 44,967,083.06/4,220.25
  6. Step 6: Final answer
    x = 10,655.08

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.