Home / 1,961.24-2,942.22-1,190.12

Finding the Fourth Proportional to 1,961.24, 2,942.22 and 1,190.12

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Solution

The fourth proportional to 1,961.24, 2,942.22 and 1,190.12 is: 1,785.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961.24 : 2,942.22 = 1,190.12 : x
  2. Step 2: Convert to fraction form
    1,961.24/2,942.22 = 1,190.12/x
  3. Step 3: Cross multiply
    1,961.24x = 2,942.22 × 1,190.12
  4. Step 4: Simplify right side
    1,961.24x = 3,501,594.87
  5. Step 5: Solve for x
    x = 3,501,594.87/1,961.24
  6. Step 6: Final answer
    x = 1,785.40

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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.