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Finding the Third Proportional to 2,210 and 2,889

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Solution

The third proportional to 2,210 and 2,889 is: 3,776.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,210 : 2,889 = 2,889 : x
  2. Step 2: Convert to fraction form
    2,210/2,889 = 2,889/x
  3. Step 3: Cross multiply
    2,210x = 2,889 × 2,889
  4. Step 4: Simplify right side
    2,210x = 8,346,321
  5. Step 5: Solve for x
    x = 8,346,321/2,210
  6. Step 6: Final answer
    x = 3,776.62

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.