Home / 5,442.64-8,163.96-1,338.64

Finding the Fourth Proportional to 5,442.64, 8,163.96 and 1,338.64

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Solution

The fourth proportional to 5,442.64, 8,163.96 and 1,338.64 is: 2,007.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,442.64 : 8,163.96 = 1,338.64 : x
  2. Step 2: Convert to fraction form
    5,442.64/8,163.96 = 1,338.64/x
  3. Step 3: Cross multiply
    5,442.64x = 8,163.96 × 1,338.64
  4. Step 4: Simplify right side
    5,442.64x = 10,928,603.41
  5. Step 5: Solve for x
    x = 10,928,603.41/5,442.64
  6. Step 6: Final answer
    x = 2,007.96

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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.