Home / 1,140.24-1,573.56-698.40

Finding the Fourth Proportional to 1,140.24, 1,573.56 and 698.40

Calculator

Solution

The fourth proportional to 1,140.24, 1,573.56 and 698.40 is: 963.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140.24 : 1,573.56 = 698.40 : x
  2. Step 2: Convert to fraction form
    1,140.24/1,573.56 = 698.40/x
  3. Step 3: Cross multiply
    1,140.24x = 1,573.56 × 698.40
  4. Step 4: Simplify right side
    1,140.24x = 1,098,974.30
  5. Step 5: Solve for x
    x = 1,098,974.30/1,140.24
  6. Step 6: Final answer
    x = 963.81

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.