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Finding the Third Proportional to 673.50 and 1,362.75

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Solution

The third proportional to 673.50 and 1,362.75 is: 2,757.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.50 : 1,362.75 = 1,362.75 : x
  2. Step 2: Convert to fraction form
    673.50/1,362.75 = 1,362.75/x
  3. Step 3: Cross multiply
    673.50x = 1,362.75 × 1,362.75
  4. Step 4: Simplify right side
    673.50x = 1,857,087.56
  5. Step 5: Solve for x
    x = 1,857,087.56/673.50
  6. Step 6: Final answer
    x = 2,757.37

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Why These Related Problems?

These problems maintain the same ratio (2.02) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.