Home / 3,631.82-5,449.68-2,811.68

Finding the Fourth Proportional to 3,631.82, 5,449.68 and 2,811.68

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Solution

The fourth proportional to 3,631.82, 5,449.68 and 2,811.68 is: 4,219.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,631.82 : 5,449.68 = 2,811.68 : x
  2. Step 2: Convert to fraction form
    3,631.82/5,449.68 = 2,811.68/x
  3. Step 3: Cross multiply
    3,631.82x = 5,449.68 × 2,811.68
  4. Step 4: Simplify right side
    3,631.82x = 15,322,756.26
  5. Step 5: Solve for x
    x = 15,322,756.26/3,631.82
  6. Step 6: Final answer
    x = 4,219.03

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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.