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Finding the Third Proportional to 1.99 and 4.75

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Solution

The third proportional to 1.99 and 4.75 is: 11.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1.99 : 4.75 = 4.75 : x
  2. Step 2: Convert to fraction form
    1.99/4.75 = 4.75/x
  3. Step 3: Cross multiply
    1.99x = 4.75 × 4.75
  4. Step 4: Simplify right side
    1.99x = 22.58
  5. Step 5: Solve for x
    x = 22.58/1.99
  6. Step 6: Final answer
    x = 11.37

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Why These Related Problems?

These problems maintain the same ratio (2.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.