Home / 3,933.31-5,903.61-1,986.88

Finding the Fourth Proportional to 3,933.31, 5,903.61 and 1,986.88

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Solution

The fourth proportional to 3,933.31, 5,903.61 and 1,986.88 is: 2,982.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,933.31 : 5,903.61 = 1,986.88 : x
  2. Step 2: Convert to fraction form
    3,933.31/5,903.61 = 1,986.88/x
  3. Step 3: Cross multiply
    3,933.31x = 5,903.61 × 1,986.88
  4. Step 4: Simplify right side
    3,933.31x = 11,729,764.64
  5. Step 5: Solve for x
    x = 11,729,764.64/3,933.31
  6. Step 6: Final answer
    x = 2,982.16

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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.