Home / 3,996.20-5,991.37-1,914.41

Finding the Fourth Proportional to 3,996.20, 5,991.37 and 1,914.41

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Solution

The fourth proportional to 3,996.20, 5,991.37 and 1,914.41 is: 2,870.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,996.20 : 5,991.37 = 1,914.41 : x
  2. Step 2: Convert to fraction form
    3,996.20/5,991.37 = 1,914.41/x
  3. Step 3: Cross multiply
    3,996.20x = 5,991.37 × 1,914.41
  4. Step 4: Simplify right side
    3,996.20x = 11,469,938.64
  5. Step 5: Solve for x
    x = 11,469,938.64/3,996.20
  6. Step 6: Final answer
    x = 2,870.21

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1.5x scale

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.