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Finding the Third Proportional to 2,772 and 7,299

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Solution

The third proportional to 2,772 and 7,299 is: 19,219.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772 : 7,299 = 7,299 : x
  2. Step 2: Convert to fraction form
    2,772/7,299 = 7,299/x
  3. Step 3: Cross multiply
    2,772x = 7,299 × 7,299
  4. Step 4: Simplify right side
    2,772x = 53,275,401
  5. Step 5: Solve for x
    x = 53,275,401/2,772
  6. Step 6: Final answer
    x = 19,219.12

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Why These Related Problems?

These problems maintain the same ratio (2.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.