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Finding the Third Proportional to 1,531.41 and 3,343.78

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Solution

The third proportional to 1,531.41 and 3,343.78 is: 7,301.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531.41 : 3,343.78 = 3,343.78 : x
  2. Step 2: Convert to fraction form
    1,531.41/3,343.78 = 3,343.78/x
  3. Step 3: Cross multiply
    1,531.41x = 3,343.78 × 3,343.78
  4. Step 4: Simplify right side
    1,531.41x = 11,180,873.05
  5. Step 5: Solve for x
    x = 11,180,873.05/1,531.41
  6. Step 6: Final answer
    x = 7,301.05

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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.