Home / 3,981.26-5,969.46-1,640.54

Finding the Fourth Proportional to 3,981.26, 5,969.46 and 1,640.54

Calculator

Solution

The fourth proportional to 3,981.26, 5,969.46 and 1,640.54 is: 2,459.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.26 : 5,969.46 = 1,640.54 : x
  2. Step 2: Convert to fraction form
    3,981.26/5,969.46 = 1,640.54/x
  3. Step 3: Cross multiply
    3,981.26x = 5,969.46 × 1,640.54
  4. Step 4: Simplify right side
    3,981.26x = 9,793,137.91
  5. Step 5: Solve for x
    x = 9,793,137.91/3,981.26
  6. Step 6: Final answer
    x = 2,459.81

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.