Home / 3,140.86-4,334.92-1,815.33

Finding the Fourth Proportional to 3,140.86, 4,334.92 and 1,815.33

Calculator

Solution

The fourth proportional to 3,140.86, 4,334.92 and 1,815.33 is: 2,505.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.86 : 4,334.92 = 1,815.33 : x
  2. Step 2: Convert to fraction form
    3,140.86/4,334.92 = 1,815.33/x
  3. Step 3: Cross multiply
    3,140.86x = 4,334.92 × 1,815.33
  4. Step 4: Simplify right side
    3,140.86x = 7,869,321.16
  5. Step 5: Solve for x
    x = 7,869,321.16/3,140.86
  6. Step 6: Final answer
    x = 2,505.47

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.