Home / 6,440.05-9,651.32-3,942.15

Finding the Fourth Proportional to 6,440.05, 9,651.32 and 3,942.15

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Solution

The fourth proportional to 6,440.05, 9,651.32 and 3,942.15 is: 5,907.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,440.05 : 9,651.32 = 3,942.15 : x
  2. Step 2: Convert to fraction form
    6,440.05/9,651.32 = 3,942.15/x
  3. Step 3: Cross multiply
    6,440.05x = 9,651.32 × 3,942.15
  4. Step 4: Simplify right side
    6,440.05x = 38,046,951.14
  5. Step 5: Solve for x
    x = 38,046,951.14/6,440.05
  6. Step 6: Final answer
    x = 5,907.87

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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.