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Finding the Third Proportional to 686.06 and 1,480.13

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Solution

The third proportional to 686.06 and 1,480.13 is: 3,193.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    686.06 : 1,480.13 = 1,480.13 : x
  2. Step 2: Convert to fraction form
    686.06/1,480.13 = 1,480.13/x
  3. Step 3: Cross multiply
    686.06x = 1,480.13 × 1,480.13
  4. Step 4: Simplify right side
    686.06x = 2,190,770.02
  5. Step 5: Solve for x
    x = 2,190,770.02/686.06
  6. Step 6: Final answer
    x = 3,193.25

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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.