Home / 1,142.26-1,712.85-493.18

Finding the Fourth Proportional to 1,142.26, 1,712.85 and 493.18

Calculator

Solution

The fourth proportional to 1,142.26, 1,712.85 and 493.18 is: 739.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142.26 : 1,712.85 = 493.18 : x
  2. Step 2: Convert to fraction form
    1,142.26/1,712.85 = 493.18/x
  3. Step 3: Cross multiply
    1,142.26x = 1,712.85 × 493.18
  4. Step 4: Simplify right side
    1,142.26x = 844,743.36
  5. Step 5: Solve for x
    x = 844,743.36/1,142.26
  6. Step 6: Final answer
    x = 739.54

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.