Home / 1,521.21-2,282.18-791.13

Finding the Fourth Proportional to 1,521.21, 2,282.18 and 791.13

Calculator

Solution

The fourth proportional to 1,521.21, 2,282.18 and 791.13 is: 1,186.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521.21 : 2,282.18 = 791.13 : x
  2. Step 2: Convert to fraction form
    1,521.21/2,282.18 = 791.13/x
  3. Step 3: Cross multiply
    1,521.21x = 2,282.18 × 791.13
  4. Step 4: Simplify right side
    1,521.21x = 1,805,497.11
  5. Step 5: Solve for x
    x = 1,805,497.11/1,521.21
  6. Step 6: Final answer
    x = 1,186.88

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.