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Finding the Third Proportional to 3,331.55 and 7,106.48

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Solution

The third proportional to 3,331.55 and 7,106.48 is: 15,158.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,331.55 : 7,106.48 = 7,106.48 : x
  2. Step 2: Convert to fraction form
    3,331.55/7,106.48 = 7,106.48/x
  3. Step 3: Cross multiply
    3,331.55x = 7,106.48 × 7,106.48
  4. Step 4: Simplify right side
    3,331.55x = 50,502,120.17
  5. Step 5: Solve for x
    x = 50,502,120.17/3,331.55
  6. Step 6: Final answer
    x = 15,158.76

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.