Home / 3,631.76-5,436.96-2,757.68

Finding the Fourth Proportional to 3,631.76, 5,436.96 and 2,757.68

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Solution

The fourth proportional to 3,631.76, 5,436.96 and 2,757.68 is: 4,128.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,631.76 : 5,436.96 = 2,757.68 : x
  2. Step 2: Convert to fraction form
    3,631.76/5,436.96 = 2,757.68/x
  3. Step 3: Cross multiply
    3,631.76x = 5,436.96 × 2,757.68
  4. Step 4: Simplify right side
    3,631.76x = 14,993,395.85
  5. Step 5: Solve for x
    x = 14,993,395.85/3,631.76
  6. Step 6: Final answer
    x = 4,128.41

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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.