Home / 986.87-1,361.85-567.22

Finding the Fourth Proportional to 986.87, 1,361.85 and 567.22

Calculator

Solution

The fourth proportional to 986.87, 1,361.85 and 567.22 is: 782.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    986.87 : 1,361.85 = 567.22 : x
  2. Step 2: Convert to fraction form
    986.87/1,361.85 = 567.22/x
  3. Step 3: Cross multiply
    986.87x = 1,361.85 × 567.22
  4. Step 4: Simplify right side
    986.87x = 772,468.56
  5. Step 5: Solve for x
    x = 772,468.56/986.87
  6. Step 6: Final answer
    x = 782.75

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.