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Finding the Third Proportional to 4,218.75 and 6,081.75

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Solution

The third proportional to 4,218.75 and 6,081.75 is: 8,767.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218.75 : 6,081.75 = 6,081.75 : x
  2. Step 2: Convert to fraction form
    4,218.75/6,081.75 = 6,081.75/x
  3. Step 3: Cross multiply
    4,218.75x = 6,081.75 × 6,081.75
  4. Step 4: Simplify right side
    4,218.75x = 36,987,683.06
  5. Step 5: Solve for x
    x = 36,987,683.06/4,218.75
  6. Step 6: Final answer
    x = 8,767.45

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.