Home / 3,991.81-5,987.35-1,882.96

Finding the Fourth Proportional to 3,991.81, 5,987.35 and 1,882.96

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Solution

The fourth proportional to 3,991.81, 5,987.35 and 1,882.96 is: 2,824.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991.81 : 5,987.35 = 1,882.96 : x
  2. Step 2: Convert to fraction form
    3,991.81/5,987.35 = 1,882.96/x
  3. Step 3: Cross multiply
    3,991.81x = 5,987.35 × 1,882.96
  4. Step 4: Simplify right side
    3,991.81x = 11,273,940.56
  5. Step 5: Solve for x
    x = 11,273,940.56/3,991.81
  6. Step 6: Final answer
    x = 2,824.27

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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.