Home / 1,321.68-1,983.18-591.78

Finding the Fourth Proportional to 1,321.68, 1,983.18 and 591.78

Calculator

Solution

The fourth proportional to 1,321.68, 1,983.18 and 591.78 is: 887.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321.68 : 1,983.18 = 591.78 : x
  2. Step 2: Convert to fraction form
    1,321.68/1,983.18 = 591.78/x
  3. Step 3: Cross multiply
    1,321.68x = 1,983.18 × 591.78
  4. Step 4: Simplify right side
    1,321.68x = 1,173,606.26
  5. Step 5: Solve for x
    x = 1,173,606.26/1,321.68
  6. Step 6: Final answer
    x = 887.97

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.