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Finding the Third Proportional to 2.10 and 4.48

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Solution

The third proportional to 2.10 and 4.48 is: 9.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2.10 : 4.48 = 4.48 : x
  2. Step 2: Convert to fraction form
    2.10/4.48 = 4.48/x
  3. Step 3: Cross multiply
    2.10x = 4.48 × 4.48
  4. Step 4: Simplify right side
    2.10x = 20.07
  5. Step 5: Solve for x
    x = 20.07/2.10
  6. Step 6: Final answer
    x = 9.54

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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.