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Finding the Third Proportional to 673.13 and 965.81

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Solution

The third proportional to 673.13 and 965.81 is: 1,385.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.13 : 965.81 = 965.81 : x
  2. Step 2: Convert to fraction form
    673.13/965.81 = 965.81/x
  3. Step 3: Cross multiply
    673.13x = 965.81 × 965.81
  4. Step 4: Simplify right side
    673.13x = 932,793.79
  5. Step 5: Solve for x
    x = 932,793.79/673.13
  6. Step 6: Final answer
    x = 1,385.77

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.