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Finding the Third Proportional to 2,131.88 and 3,102.19

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Solution

The third proportional to 2,131.88 and 3,102.19 is: 4,514.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131.88 : 3,102.19 = 3,102.19 : x
  2. Step 2: Convert to fraction form
    2,131.88/3,102.19 = 3,102.19/x
  3. Step 3: Cross multiply
    2,131.88x = 3,102.19 × 3,102.19
  4. Step 4: Simplify right side
    2,131.88x = 9,623,567.29
  5. Step 5: Solve for x
    x = 9,623,567.29/2,131.88
  6. Step 6: Final answer
    x = 4,514.13

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.