Home / 2,280.44-3,419.82-819.20

Finding the Fourth Proportional to 2,280.44, 3,419.82 and 819.20

Calculator

Solution

The fourth proportional to 2,280.44, 3,419.82 and 819.20 is: 1,228.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,280.44 : 3,419.82 = 819.20 : x
  2. Step 2: Convert to fraction form
    2,280.44/3,419.82 = 819.20/x
  3. Step 3: Cross multiply
    2,280.44x = 3,419.82 × 819.20
  4. Step 4: Simplify right side
    2,280.44x = 2,801,516.54
  5. Step 5: Solve for x
    x = 2,801,516.54/2,280.44
  6. Step 6: Final answer
    x = 1,228.50

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.