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Finding the Third Proportional to 2,509 and 5,306

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Solution

The third proportional to 2,509 and 5,306 is: 11,221.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,509 : 5,306 = 5,306 : x
  2. Step 2: Convert to fraction form
    2,509/5,306 = 5,306/x
  3. Step 3: Cross multiply
    2,509x = 5,306 × 5,306
  4. Step 4: Simplify right side
    2,509x = 28,153,636
  5. Step 5: Solve for x
    x = 28,153,636/2,509
  6. Step 6: Final answer
    x = 11,221.06

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.