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Finding the Third Proportional to 681.75 and 1,580.06

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Solution

The third proportional to 681.75 and 1,580.06 is: 3,662.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    681.75 : 1,580.06 = 1,580.06 : x
  2. Step 2: Convert to fraction form
    681.75/1,580.06 = 1,580.06/x
  3. Step 3: Cross multiply
    681.75x = 1,580.06 × 1,580.06
  4. Step 4: Simplify right side
    681.75x = 2,496,597.50
  5. Step 5: Solve for x
    x = 2,496,597.50/681.75
  6. Step 6: Final answer
    x = 3,662.04

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.