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Finding the Third Proportional to 2,131.13 and 4,649.63

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Solution

The third proportional to 2,131.13 and 4,649.63 is: 10,144.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131.13 : 4,649.63 = 4,649.63 : x
  2. Step 2: Convert to fraction form
    2,131.13/4,649.63 = 4,649.63/x
  3. Step 3: Cross multiply
    2,131.13x = 4,649.63 × 4,649.63
  4. Step 4: Simplify right side
    2,131.13x = 21,619,012.64
  5. Step 5: Solve for x
    x = 21,619,012.64/2,131.13
  6. Step 6: Final answer
    x = 10,144.41

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.