Home / 1,538.80-2,308.33-443.18

Finding the Fourth Proportional to 1,538.80, 2,308.33 and 443.18

Calculator

Solution

The fourth proportional to 1,538.80, 2,308.33 and 443.18 is: 664.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538.80 : 2,308.33 = 443.18 : x
  2. Step 2: Convert to fraction form
    1,538.80/2,308.33 = 443.18/x
  3. Step 3: Cross multiply
    1,538.80x = 2,308.33 × 443.18
  4. Step 4: Simplify right side
    1,538.80x = 1,023,005.69
  5. Step 5: Solve for x
    x = 1,023,005.69/1,538.80
  6. Step 6: Final answer
    x = 664.81

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.