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Finding the Third Proportional to 3,190.78 and 4,537.69

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Solution

The third proportional to 3,190.78 and 4,537.69 is: 6,453.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.78 : 4,537.69 = 4,537.69 : x
  2. Step 2: Convert to fraction form
    3,190.78/4,537.69 = 4,537.69/x
  3. Step 3: Cross multiply
    3,190.78x = 4,537.69 × 4,537.69
  4. Step 4: Simplify right side
    3,190.78x = 20,590,607.85
  5. Step 5: Solve for x
    x = 20,590,607.85/3,190.78
  6. Step 6: Final answer
    x = 6,453.16

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.