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Finding the Third Proportional to 3.33 and 4.87

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Solution

The third proportional to 3.33 and 4.87 is: 7.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3.33 : 4.87 = 4.87 : x
  2. Step 2: Convert to fraction form
    3.33/4.87 = 4.87/x
  3. Step 3: Cross multiply
    3.33x = 4.87 × 4.87
  4. Step 4: Simplify right side
    3.33x = 23.76
  5. Step 5: Solve for x
    x = 23.76/3.33
  6. Step 6: Final answer
    x = 7.14

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.