Home / 3,933.42-5,428.18-2,165.02

Finding the Fourth Proportional to 3,933.42, 5,428.18 and 2,165.02

Calculator

Solution

The fourth proportional to 3,933.42, 5,428.18 and 2,165.02 is: 2,987.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,933.42 : 5,428.18 = 2,165.02 : x
  2. Step 2: Convert to fraction form
    3,933.42/5,428.18 = 2,165.02/x
  3. Step 3: Cross multiply
    3,933.42x = 5,428.18 × 2,165.02
  4. Step 4: Simplify right side
    3,933.42x = 11,752,118.26
  5. Step 5: Solve for x
    x = 11,752,118.26/3,933.42
  6. Step 6: Final answer
    x = 2,987.76

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.