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Finding the Third Proportional to 517.13 and 1,127.20

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Solution

The third proportional to 517.13 and 1,127.20 is: 2,457.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    517.13 : 1,127.20 = 1,127.20 : x
  2. Step 2: Convert to fraction form
    517.13/1,127.20 = 1,127.20/x
  3. Step 3: Cross multiply
    517.13x = 1,127.20 × 1,127.20
  4. Step 4: Simplify right side
    517.13x = 1,270,586.89
  5. Step 5: Solve for x
    x = 1,270,586.89/517.13
  6. Step 6: Final answer
    x = 2,457.02

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.