Home / 6,640.05-9,961.49-2,197.47

Finding the Fourth Proportional to 6,640.05, 9,961.49 and 2,197.47

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Solution

The fourth proportional to 6,640.05, 9,961.49 and 2,197.47 is: 3,296.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,640.05 : 9,961.49 = 2,197.47 : x
  2. Step 2: Convert to fraction form
    6,640.05/9,961.49 = 2,197.47/x
  3. Step 3: Cross multiply
    6,640.05x = 9,961.49 × 2,197.47
  4. Step 4: Simplify right side
    6,640.05x = 21,890,064.44
  5. Step 5: Solve for x
    x = 21,890,064.44/6,640.05
  6. Step 6: Final answer
    x = 3,296.67

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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.