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Finding the Third Proportional to 770.72 and 1,694.91

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Solution

The third proportional to 770.72 and 1,694.91 is: 3,727.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    770.72 : 1,694.91 = 1,694.91 : x
  2. Step 2: Convert to fraction form
    770.72/1,694.91 = 1,694.91/x
  3. Step 3: Cross multiply
    770.72x = 1,694.91 × 1,694.91
  4. Step 4: Simplify right side
    770.72x = 2,872,707.20
  5. Step 5: Solve for x
    x = 2,872,707.20/770.72
  6. Step 6: Final answer
    x = 3,727.31

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.