Home / 2,939.92-4,409.60-1,091.04

Finding the Fourth Proportional to 2,939.92, 4,409.60 and 1,091.04

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Solution

The fourth proportional to 2,939.92, 4,409.60 and 1,091.04 is: 1,636.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.92 : 4,409.60 = 1,091.04 : x
  2. Step 2: Convert to fraction form
    2,939.92/4,409.60 = 1,091.04/x
  3. Step 3: Cross multiply
    2,939.92x = 4,409.60 × 1,091.04
  4. Step 4: Simplify right side
    2,939.92x = 4,811,049.98
  5. Step 5: Solve for x
    x = 4,811,049.98/2,939.92
  6. Step 6: Final answer
    x = 1,636.46

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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.