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Finding the Third Proportional to 2,789 and 5,437

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Solution

The third proportional to 2,789 and 5,437 is: 10,599.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789 : 5,437 = 5,437 : x
  2. Step 2: Convert to fraction form
    2,789/5,437 = 5,437/x
  3. Step 3: Cross multiply
    2,789x = 5,437 × 5,437
  4. Step 4: Simplify right side
    2,789x = 29,560,969
  5. Step 5: Solve for x
    x = 29,560,969/2,789
  6. Step 6: Final answer
    x = 10,599.13

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.