Home / 3,716.60-5,138.78-3,249.77

Finding the Fourth Proportional to 3,716.60, 5,138.78 and 3,249.77

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Solution

The fourth proportional to 3,716.60, 5,138.78 and 3,249.77 is: 4,493.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,716.60 : 5,138.78 = 3,249.77 : x
  2. Step 2: Convert to fraction form
    3,716.60/5,138.78 = 3,249.77/x
  3. Step 3: Cross multiply
    3,716.60x = 5,138.78 × 3,249.77
  4. Step 4: Simplify right side
    3,716.60x = 16,699,811.14
  5. Step 5: Solve for x
    x = 16,699,811.14/3,716.60
  6. Step 6: Final answer
    x = 4,493.31

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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.