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Finding the Third Proportional to 792 and 2,135.25

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Solution

The third proportional to 792 and 2,135.25 is: 5,756.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    792 : 2,135.25 = 2,135.25 : x
  2. Step 2: Convert to fraction form
    792/2,135.25 = 2,135.25/x
  3. Step 3: Cross multiply
    792x = 2,135.25 × 2,135.25
  4. Step 4: Simplify right side
    792x = 4,559,292.56
  5. Step 5: Solve for x
    x = 4,559,292.56/792
  6. Step 6: Final answer
    x = 5,756.68

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Why These Related Problems?

These problems maintain the same ratio (2.70) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.