Home / 2,939.46-4,410.90-1,091.85

Finding the Fourth Proportional to 2,939.46, 4,410.90 and 1,091.85

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Solution

The fourth proportional to 2,939.46, 4,410.90 and 1,091.85 is: 1,638.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.46 : 4,410.90 = 1,091.85 : x
  2. Step 2: Convert to fraction form
    2,939.46/4,410.90 = 1,091.85/x
  3. Step 3: Cross multiply
    2,939.46x = 4,410.90 × 1,091.85
  4. Step 4: Simplify right side
    2,939.46x = 4,816,024.62
  5. Step 5: Solve for x
    x = 4,816,024.62/2,939.46
  6. Step 6: Final answer
    x = 1,638.41

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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.