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Finding the Third Proportional to 2,455.88 and 5,279.63

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Solution

The third proportional to 2,455.88 and 5,279.63 is: 11,350.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.88 : 5,279.63 = 5,279.63 : x
  2. Step 2: Convert to fraction form
    2,455.88/5,279.63 = 5,279.63/x
  3. Step 3: Cross multiply
    2,455.88x = 5,279.63 × 5,279.63
  4. Step 4: Simplify right side
    2,455.88x = 27,874,440.14
  5. Step 5: Solve for x
    x = 27,874,440.14/2,455.88
  6. Step 6: Final answer
    x = 11,350.11

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.