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Finding the Third Proportional to 2.64 and 4.39

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Solution

The third proportional to 2.64 and 4.39 is: 7.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2.64 : 4.39 = 4.39 : x
  2. Step 2: Convert to fraction form
    2.64/4.39 = 4.39/x
  3. Step 3: Cross multiply
    2.64x = 4.39 × 4.39
  4. Step 4: Simplify right side
    2.64x = 19.31
  5. Step 5: Solve for x
    x = 19.31/2.64
  6. Step 6: Final answer
    x = 7.32

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.