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Finding the Third Proportional to 910.41 and 1,992.30

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Solution

The third proportional to 910.41 and 1,992.30 is: 4,359.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    910.41 : 1,992.30 = 1,992.30 : x
  2. Step 2: Convert to fraction form
    910.41/1,992.30 = 1,992.30/x
  3. Step 3: Cross multiply
    910.41x = 1,992.30 × 1,992.30
  4. Step 4: Simplify right side
    910.41x = 3,969,277.97
  5. Step 5: Solve for x
    x = 3,969,277.97/910.41
  6. Step 6: Final answer
    x = 4,359.90

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.