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Finding the Third Proportional to 5,112 and 5,613.75

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Solution

The third proportional to 5,112 and 5,613.75 is: 6,164.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112 : 5,613.75 = 5,613.75 : x
  2. Step 2: Convert to fraction form
    5,112/5,613.75 = 5,613.75/x
  3. Step 3: Cross multiply
    5,112x = 5,613.75 × 5,613.75
  4. Step 4: Simplify right side
    5,112x = 31,514,189.06
  5. Step 5: Solve for x
    x = 31,514,189.06/5,112
  6. Step 6: Final answer
    x = 6,164.75

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.