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Finding the Third Proportional to 922.50 and 1,645.88

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Solution

The third proportional to 922.50 and 1,645.88 is: 2,936.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    922.50 : 1,645.88 = 1,645.88 : x
  2. Step 2: Convert to fraction form
    922.50/1,645.88 = 1,645.88/x
  3. Step 3: Cross multiply
    922.50x = 1,645.88 × 1,645.88
  4. Step 4: Simplify right side
    922.50x = 2,708,904.52
  5. Step 5: Solve for x
    x = 2,708,904.52/922.50
  6. Step 6: Final answer
    x = 2,936.48

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.