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Finding the Third Proportional to 3.80 and 4.63

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Solution

The third proportional to 3.80 and 4.63 is: 5.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3.80 : 4.63 = 4.63 : x
  2. Step 2: Convert to fraction form
    3.80/4.63 = 4.63/x
  3. Step 3: Cross multiply
    3.80x = 4.63 × 4.63
  4. Step 4: Simplify right side
    3.80x = 21.41
  5. Step 5: Solve for x
    x = 21.41/3.80
  6. Step 6: Final answer
    x = 5.64

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Why These Related Problems?

These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.