Home / 2,940.75-4,408.30-1,091.36

Finding the Fourth Proportional to 2,940.75, 4,408.30 and 1,091.36

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Solution

The fourth proportional to 2,940.75, 4,408.30 and 1,091.36 is: 1,635.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,940.75 : 4,408.30 = 1,091.36 : x
  2. Step 2: Convert to fraction form
    2,940.75/4,408.30 = 1,091.36/x
  3. Step 3: Cross multiply
    2,940.75x = 4,408.30 × 1,091.36
  4. Step 4: Simplify right side
    2,940.75x = 4,811,042.29
  5. Step 5: Solve for x
    x = 4,811,042.29/2,940.75
  6. Step 6: Final answer
    x = 1,635.99

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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.