Home / 3,086.03-4,258.83-1,688.78

Finding the Fourth Proportional to 3,086.03, 4,258.83 and 1,688.78

Calculator

Solution

The fourth proportional to 3,086.03, 4,258.83 and 1,688.78 is: 2,330.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.03 : 4,258.83 = 1,688.78 : x
  2. Step 2: Convert to fraction form
    3,086.03/4,258.83 = 1,688.78/x
  3. Step 3: Cross multiply
    3,086.03x = 4,258.83 × 1,688.78
  4. Step 4: Simplify right side
    3,086.03x = 7,192,226.93
  5. Step 5: Solve for x
    x = 7,192,226.93/3,086.03
  6. Step 6: Final answer
    x = 2,330.58

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.