Home / 3,467.87-5,198.83-1,389.34

Finding the Fourth Proportional to 3,467.87, 5,198.83 and 1,389.34

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Solution

The fourth proportional to 3,467.87, 5,198.83 and 1,389.34 is: 2,082.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,467.87 : 5,198.83 = 1,389.34 : x
  2. Step 2: Convert to fraction form
    3,467.87/5,198.83 = 1,389.34/x
  3. Step 3: Cross multiply
    3,467.87x = 5,198.83 × 1,389.34
  4. Step 4: Simplify right side
    3,467.87x = 7,222,942.47
  5. Step 5: Solve for x
    x = 7,222,942.47/3,467.87
  6. Step 6: Final answer
    x = 2,082.82

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1.5x scale

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.