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Finding the Third Proportional to 806.75 and 1,728.25

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Solution

The third proportional to 806.75 and 1,728.25 is: 3,702.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    806.75 : 1,728.25 = 1,728.25 : x
  2. Step 2: Convert to fraction form
    806.75/1,728.25 = 1,728.25/x
  3. Step 3: Cross multiply
    806.75x = 1,728.25 × 1,728.25
  4. Step 4: Simplify right side
    806.75x = 2,986,848.06
  5. Step 5: Solve for x
    x = 2,986,848.06/806.75
  6. Step 6: Final answer
    x = 3,702.32

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.