Home / 2,740.94-3,781.95-1,561.98

Finding the Fourth Proportional to 2,740.94, 3,781.95 and 1,561.98

Calculator

Solution

The fourth proportional to 2,740.94, 3,781.95 and 1,561.98 is: 2,155.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,740.94 : 3,781.95 = 1,561.98 : x
  2. Step 2: Convert to fraction form
    2,740.94/3,781.95 = 1,561.98/x
  3. Step 3: Cross multiply
    2,740.94x = 3,781.95 × 1,561.98
  4. Step 4: Simplify right side
    2,740.94x = 5,907,330.26
  5. Step 5: Solve for x
    x = 5,907,330.26/2,740.94
  6. Step 6: Final answer
    x = 2,155.22

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.