Home / 1,831.75-2,747.58-445.09

Finding the Fourth Proportional to 1,831.75, 2,747.58 and 445.09

Calculator

Solution

The fourth proportional to 1,831.75, 2,747.58 and 445.09 is: 667.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,831.75 : 2,747.58 = 445.09 : x
  2. Step 2: Convert to fraction form
    1,831.75/2,747.58 = 445.09/x
  3. Step 3: Cross multiply
    1,831.75x = 2,747.58 × 445.09
  4. Step 4: Simplify right side
    1,831.75x = 1,222,921.49
  5. Step 5: Solve for x
    x = 1,222,921.49/1,831.75
  6. Step 6: Final answer
    x = 667.63

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.