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Finding the Third Proportional to 3,143.25 and 4,619.25

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Solution

The third proportional to 3,143.25 and 4,619.25 is: 6,788.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.25 : 4,619.25 = 4,619.25 : x
  2. Step 2: Convert to fraction form
    3,143.25/4,619.25 = 4,619.25/x
  3. Step 3: Cross multiply
    3,143.25x = 4,619.25 × 4,619.25
  4. Step 4: Simplify right side
    3,143.25x = 21,337,470.56
  5. Step 5: Solve for x
    x = 21,337,470.56/3,143.25
  6. Step 6: Final answer
    x = 6,788.35

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.