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Finding the Fourth Proportional to 3,453.79, 5,183.07 and 1,373.89

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Solution

The fourth proportional to 3,453.79, 5,183.07 and 1,373.89 is: 2,061.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,453.79 : 5,183.07 = 1,373.89 : x
  2. Step 2: Convert to fraction form
    3,453.79/5,183.07 = 1,373.89/x
  3. Step 3: Cross multiply
    3,453.79x = 5,183.07 × 1,373.89
  4. Step 4: Simplify right side
    3,453.79x = 7,120,968.04
  5. Step 5: Solve for x
    x = 7,120,968.04/3,453.79
  6. Step 6: Final answer
    x = 2,061.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.