Home / 5,414.36-8,121.54-3,942.95

Finding the Fourth Proportional to 5,414.36, 8,121.54 and 3,942.95

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Solution

The fourth proportional to 5,414.36, 8,121.54 and 3,942.95 is: 5,914.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,414.36 : 8,121.54 = 3,942.95 : x
  2. Step 2: Convert to fraction form
    5,414.36/8,121.54 = 3,942.95/x
  3. Step 3: Cross multiply
    5,414.36x = 8,121.54 × 3,942.95
  4. Step 4: Simplify right side
    5,414.36x = 32,022,826.14
  5. Step 5: Solve for x
    x = 32,022,826.14/5,414.36
  6. Step 6: Final answer
    x = 5,914.43

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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.