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Finding the Third Proportional to 2,275 and 3,478.25

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Solution

The third proportional to 2,275 and 3,478.25 is: 5,317.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,275 : 3,478.25 = 3,478.25 : x
  2. Step 2: Convert to fraction form
    2,275/3,478.25 = 3,478.25/x
  3. Step 3: Cross multiply
    2,275x = 3,478.25 × 3,478.25
  4. Step 4: Simplify right side
    2,275x = 12,098,223.06
  5. Step 5: Solve for x
    x = 12,098,223.06/2,275
  6. Step 6: Final answer
    x = 5,317.90

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.