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Finding the Third Proportional to 3,131 and 4,876.25

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Solution

The third proportional to 3,131 and 4,876.25 is: 7,594.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131 : 4,876.25 = 4,876.25 : x
  2. Step 2: Convert to fraction form
    3,131/4,876.25 = 4,876.25/x
  3. Step 3: Cross multiply
    3,131x = 4,876.25 × 4,876.25
  4. Step 4: Simplify right side
    3,131x = 23,777,814.06
  5. Step 5: Solve for x
    x = 23,777,814.06/3,131
  6. Step 6: Final answer
    x = 7,594.32

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.