Home / 1,785.96-2,678.54-1,231.11

Finding the Fourth Proportional to 1,785.96, 2,678.54 and 1,231.11

Calculator

Solution

The fourth proportional to 1,785.96, 2,678.54 and 1,231.11 is: 1,846.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,785.96 : 2,678.54 = 1,231.11 : x
  2. Step 2: Convert to fraction form
    1,785.96/2,678.54 = 1,231.11/x
  3. Step 3: Cross multiply
    1,785.96x = 2,678.54 × 1,231.11
  4. Step 4: Simplify right side
    1,785.96x = 3,297,571.22
  5. Step 5: Solve for x
    x = 3,297,571.22/1,785.96
  6. Step 6: Final answer
    x = 1,846.39

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.