Home / 3,942.64-5,913.68-1,345.60

Finding the Fourth Proportional to 3,942.64, 5,913.68 and 1,345.60

Calculator

Solution

The fourth proportional to 3,942.64, 5,913.68 and 1,345.60 is: 2,018.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.64 : 5,913.68 = 1,345.60 : x
  2. Step 2: Convert to fraction form
    3,942.64/5,913.68 = 1,345.60/x
  3. Step 3: Cross multiply
    3,942.64x = 5,913.68 × 1,345.60
  4. Step 4: Simplify right side
    3,942.64x = 7,957,447.81
  5. Step 5: Solve for x
    x = 7,957,447.81/3,942.64
  6. Step 6: Final answer
    x = 2,018.30

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.