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Finding the Third Proportional to 2,838 and 6,215.25

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Solution

The third proportional to 2,838 and 6,215.25 is: 13,611.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,838 : 6,215.25 = 6,215.25 : x
  2. Step 2: Convert to fraction form
    2,838/6,215.25 = 6,215.25/x
  3. Step 3: Cross multiply
    2,838x = 6,215.25 × 6,215.25
  4. Step 4: Simplify right side
    2,838x = 38,629,332.56
  5. Step 5: Solve for x
    x = 38,629,332.56/2,838
  6. Step 6: Final answer
    x = 13,611.46

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.