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Finding the Third Proportional to 811.58 and 1,738.49

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Solution

The third proportional to 811.58 and 1,738.49 is: 3,724.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    811.58 : 1,738.49 = 1,738.49 : x
  2. Step 2: Convert to fraction form
    811.58/1,738.49 = 1,738.49/x
  3. Step 3: Cross multiply
    811.58x = 1,738.49 × 1,738.49
  4. Step 4: Simplify right side
    811.58x = 3,022,361.88
  5. Step 5: Solve for x
    x = 3,022,361.88/811.58
  6. Step 6: Final answer
    x = 3,724.04

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.