Home / 756.75-1,134.90-448.53

Finding the Fourth Proportional to 756.75, 1,134.90 and 448.53

Calculator

Solution

The fourth proportional to 756.75, 1,134.90 and 448.53 is: 672.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    756.75 : 1,134.90 = 448.53 : x
  2. Step 2: Convert to fraction form
    756.75/1,134.90 = 448.53/x
  3. Step 3: Cross multiply
    756.75x = 1,134.90 × 448.53
  4. Step 4: Simplify right side
    756.75x = 509,032.44
  5. Step 5: Solve for x
    x = 509,032.44/756.75
  6. Step 6: Final answer
    x = 672.65

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.