Home / 1,229.82-1,697.14-677.82

Finding the Fourth Proportional to 1,229.82, 1,697.14 and 677.82

Calculator

Solution

The fourth proportional to 1,229.82, 1,697.14 and 677.82 is: 935.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229.82 : 1,697.14 = 677.82 : x
  2. Step 2: Convert to fraction form
    1,229.82/1,697.14 = 677.82/x
  3. Step 3: Cross multiply
    1,229.82x = 1,697.14 × 677.82
  4. Step 4: Simplify right side
    1,229.82x = 1,150,355.43
  5. Step 5: Solve for x
    x = 1,150,355.43/1,229.82
  6. Step 6: Final answer
    x = 935.39

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.