Home / 1,961.98-2,940.09-1,902.85

Finding the Fourth Proportional to 1,961.98, 2,940.09 and 1,902.85

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Solution

The fourth proportional to 1,961.98, 2,940.09 and 1,902.85 is: 2,851.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961.98 : 2,940.09 = 1,902.85 : x
  2. Step 2: Convert to fraction form
    1,961.98/2,940.09 = 1,902.85/x
  3. Step 3: Cross multiply
    1,961.98x = 2,940.09 × 1,902.85
  4. Step 4: Simplify right side
    1,961.98x = 5,594,550.26
  5. Step 5: Solve for x
    x = 5,594,550.26/1,961.98
  6. Step 6: Final answer
    x = 2,851.48

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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.