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Finding the Third Proportional to 2,280 and 3,722.75

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Solution

The third proportional to 2,280 and 3,722.75 is: 6,078.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,280 : 3,722.75 = 3,722.75 : x
  2. Step 2: Convert to fraction form
    2,280/3,722.75 = 3,722.75/x
  3. Step 3: Cross multiply
    2,280x = 3,722.75 × 3,722.75
  4. Step 4: Simplify right side
    2,280x = 13,858,867.56
  5. Step 5: Solve for x
    x = 13,858,867.56/2,280
  6. Step 6: Final answer
    x = 6,078.45

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.