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Finding the Third Proportional to 2.14 and 4.54

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Solution

The third proportional to 2.14 and 4.54 is: 9.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2.14 : 4.54 = 4.54 : x
  2. Step 2: Convert to fraction form
    2.14/4.54 = 4.54/x
  3. Step 3: Cross multiply
    2.14x = 4.54 × 4.54
  4. Step 4: Simplify right side
    2.14x = 20.60
  5. Step 5: Solve for x
    x = 20.60/2.14
  6. Step 6: Final answer
    x = 9.64

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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.