Home / 1,126.36-1,690.31-395.95

Finding the Fourth Proportional to 1,126.36, 1,690.31 and 395.95

Calculator

Solution

The fourth proportional to 1,126.36, 1,690.31 and 395.95 is: 594.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126.36 : 1,690.31 = 395.95 : x
  2. Step 2: Convert to fraction form
    1,126.36/1,690.31 = 395.95/x
  3. Step 3: Cross multiply
    1,126.36x = 1,690.31 × 395.95
  4. Step 4: Simplify right side
    1,126.36x = 669,278.24
  5. Step 5: Solve for x
    x = 669,278.24/1,126.36
  6. Step 6: Final answer
    x = 594.20

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.