Home / 3,328.24-4,989.39-1,379.20

Finding the Fourth Proportional to 3,328.24, 4,989.39 and 1,379.20

Calculator

Solution

The fourth proportional to 3,328.24, 4,989.39 and 1,379.20 is: 2,067.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,328.24 : 4,989.39 = 1,379.20 : x
  2. Step 2: Convert to fraction form
    3,328.24/4,989.39 = 1,379.20/x
  3. Step 3: Cross multiply
    3,328.24x = 4,989.39 × 1,379.20
  4. Step 4: Simplify right side
    3,328.24x = 6,881,366.69
  5. Step 5: Solve for x
    x = 6,881,366.69/3,328.24
  6. Step 6: Final answer
    x = 2,067.57

Related Problems

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.