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Finding the Third Proportional to 1,929.88 and 4,165.75

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Solution

The third proportional to 1,929.88 and 4,165.75 is: 8,992.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.88 : 4,165.75 = 4,165.75 : x
  2. Step 2: Convert to fraction form
    1,929.88/4,165.75 = 4,165.75/x
  3. Step 3: Cross multiply
    1,929.88x = 4,165.75 × 4,165.75
  4. Step 4: Simplify right side
    1,929.88x = 17,353,473.06
  5. Step 5: Solve for x
    x = 17,353,473.06/1,929.88
  6. Step 6: Final answer
    x = 8,992.02

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.