Home / 3,961.20-5,940.09-1,619.74

Finding the Fourth Proportional to 3,961.20, 5,940.09 and 1,619.74

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Solution

The fourth proportional to 3,961.20, 5,940.09 and 1,619.74 is: 2,428.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,961.20 : 5,940.09 = 1,619.74 : x
  2. Step 2: Convert to fraction form
    3,961.20/5,940.09 = 1,619.74/x
  3. Step 3: Cross multiply
    3,961.20x = 5,940.09 × 1,619.74
  4. Step 4: Simplify right side
    3,961.20x = 9,621,401.38
  5. Step 5: Solve for x
    x = 9,621,401.38/3,961.20
  6. Step 6: Final answer
    x = 2,428.91

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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.