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Finding the Third Proportional to 3.07 and 4.38

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Solution

The third proportional to 3.07 and 4.38 is: 6.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3.07 : 4.38 = 4.38 : x
  2. Step 2: Convert to fraction form
    3.07/4.38 = 4.38/x
  3. Step 3: Cross multiply
    3.07x = 4.38 × 4.38
  4. Step 4: Simplify right side
    3.07x = 19.16
  5. Step 5: Solve for x
    x = 19.16/3.07
  6. Step 6: Final answer
    x = 6.25

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.