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Finding the Third Proportional to 1,299 and 2,823

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Solution

The third proportional to 1,299 and 2,823 is: 6,134.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299 : 2,823 = 2,823 : x
  2. Step 2: Convert to fraction form
    1,299/2,823 = 2,823/x
  3. Step 3: Cross multiply
    1,299x = 2,823 × 2,823
  4. Step 4: Simplify right side
    1,299x = 7,969,329
  5. Step 5: Solve for x
    x = 7,969,329/1,299
  6. Step 6: Final answer
    x = 6,134.97

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.