Home / 3,511.38-5,268.60-1,663.81

Finding the Fourth Proportional to 3,511.38, 5,268.60 and 1,663.81

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Solution

The fourth proportional to 3,511.38, 5,268.60 and 1,663.81 is: 2,496.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.38 : 5,268.60 = 1,663.81 : x
  2. Step 2: Convert to fraction form
    3,511.38/5,268.60 = 1,663.81/x
  3. Step 3: Cross multiply
    3,511.38x = 5,268.60 × 1,663.81
  4. Step 4: Simplify right side
    3,511.38x = 8,765,949.37
  5. Step 5: Solve for x
    x = 8,765,949.37/3,511.38
  6. Step 6: Final answer
    x = 2,496.44

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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.