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Finding the Third Proportional to 2,579.75 and 3,880.75

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Solution

The third proportional to 2,579.75 and 3,880.75 is: 5,837.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,579.75 : 3,880.75 = 3,880.75 : x
  2. Step 2: Convert to fraction form
    2,579.75/3,880.75 = 3,880.75/x
  3. Step 3: Cross multiply
    2,579.75x = 3,880.75 × 3,880.75
  4. Step 4: Simplify right side
    2,579.75x = 15,060,220.56
  5. Step 5: Solve for x
    x = 15,060,220.56/2,579.75
  6. Step 6: Final answer
    x = 5,837.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.