Home / 1,521.35-2,280.40-789.92

Finding the Fourth Proportional to 1,521.35, 2,280.40 and 789.92

Calculator

Solution

The fourth proportional to 1,521.35, 2,280.40 and 789.92 is: 1,184.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521.35 : 2,280.40 = 789.92 : x
  2. Step 2: Convert to fraction form
    1,521.35/2,280.40 = 789.92/x
  3. Step 3: Cross multiply
    1,521.35x = 2,280.40 × 789.92
  4. Step 4: Simplify right side
    1,521.35x = 1,801,318.22
  5. Step 5: Solve for x
    x = 1,801,318.22/1,521.35
  6. Step 6: Final answer
    x = 1,184.03

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.