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Finding the Fourth Proportional to 2,469.87, 3,408.42 and 1,350.81

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Solution

The fourth proportional to 2,469.87, 3,408.42 and 1,350.81 is: 1,864.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,469.87 : 3,408.42 = 1,350.81 : x
  2. Step 2: Convert to fraction form
    2,469.87/3,408.42 = 1,350.81/x
  3. Step 3: Cross multiply
    2,469.87x = 3,408.42 × 1,350.81
  4. Step 4: Simplify right side
    2,469.87x = 4,604,137.77
  5. Step 5: Solve for x
    x = 4,604,137.77/2,469.87
  6. Step 6: Final answer
    x = 1,864.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.