Home / 772.20-1,157.94-361.53

Finding the Fourth Proportional to 772.20, 1,157.94 and 361.53

Calculator

Solution

The fourth proportional to 772.20, 1,157.94 and 361.53 is: 542.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    772.20 : 1,157.94 = 361.53 : x
  2. Step 2: Convert to fraction form
    772.20/1,157.94 = 361.53/x
  3. Step 3: Cross multiply
    772.20x = 1,157.94 × 361.53
  4. Step 4: Simplify right side
    772.20x = 418,630.05
  5. Step 5: Solve for x
    x = 418,630.05/772.20
  6. Step 6: Final answer
    x = 542.13

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.