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Finding the Third Proportional to 2,251.13 and 3,210.75

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Solution

The third proportional to 2,251.13 and 3,210.75 is: 4,579.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,251.13 : 3,210.75 = 3,210.75 : x
  2. Step 2: Convert to fraction form
    2,251.13/3,210.75 = 3,210.75/x
  3. Step 3: Cross multiply
    2,251.13x = 3,210.75 × 3,210.75
  4. Step 4: Simplify right side
    2,251.13x = 10,308,915.56
  5. Step 5: Solve for x
    x = 10,308,915.56/2,251.13
  6. Step 6: Final answer
    x = 4,579.45

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.