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Finding the Third Proportional to 811.27 and 1,725.05

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Solution

The third proportional to 811.27 and 1,725.05 is: 3,668.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    811.27 : 1,725.05 = 1,725.05 : x
  2. Step 2: Convert to fraction form
    811.27/1,725.05 = 1,725.05/x
  3. Step 3: Cross multiply
    811.27x = 1,725.05 × 1,725.05
  4. Step 4: Simplify right side
    811.27x = 2,975,786.72
  5. Step 5: Solve for x
    x = 2,975,786.72/811.27
  6. Step 6: Final answer
    x = 3,668.08

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.