Home / 1,138.92-1,571.67-697.56

Finding the Fourth Proportional to 1,138.92, 1,571.67 and 697.56

Calculator

Solution

The fourth proportional to 1,138.92, 1,571.67 and 697.56 is: 962.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138.92 : 1,571.67 = 697.56 : x
  2. Step 2: Convert to fraction form
    1,138.92/1,571.67 = 697.56/x
  3. Step 3: Cross multiply
    1,138.92x = 1,571.67 × 697.56
  4. Step 4: Simplify right side
    1,138.92x = 1,096,334.13
  5. Step 5: Solve for x
    x = 1,096,334.13/1,138.92
  6. Step 6: Final answer
    x = 962.61

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.