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Finding the Third Proportional to 2,919 and 4,623

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Solution

The third proportional to 2,919 and 4,623 is: 7,321.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919 : 4,623 = 4,623 : x
  2. Step 2: Convert to fraction form
    2,919/4,623 = 4,623/x
  3. Step 3: Cross multiply
    2,919x = 4,623 × 4,623
  4. Step 4: Simplify right side
    2,919x = 21,372,129
  5. Step 5: Solve for x
    x = 21,372,129/2,919
  6. Step 6: Final answer
    x = 7,321.73

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.