Home / 5,442.50-8,163.79-1,338.50

Finding the Fourth Proportional to 5,442.50, 8,163.79 and 1,338.50

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Solution

The fourth proportional to 5,442.50, 8,163.79 and 1,338.50 is: 2,007.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,442.50 : 8,163.79 = 1,338.50 : x
  2. Step 2: Convert to fraction form
    5,442.50/8,163.79 = 1,338.50/x
  3. Step 3: Cross multiply
    5,442.50x = 8,163.79 × 1,338.50
  4. Step 4: Simplify right side
    5,442.50x = 10,927,232.92
  5. Step 5: Solve for x
    x = 10,927,232.92/5,442.50
  6. Step 6: Final answer
    x = 2,007.76

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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.