Home / 3,700.68-5,107.24-2,129.28

Finding the Fourth Proportional to 3,700.68, 5,107.24 and 2,129.28

Calculator

Solution

The fourth proportional to 3,700.68, 5,107.24 and 2,129.28 is: 2,938.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,700.68 : 5,107.24 = 2,129.28 : x
  2. Step 2: Convert to fraction form
    3,700.68/5,107.24 = 2,129.28/x
  3. Step 3: Cross multiply
    3,700.68x = 5,107.24 × 2,129.28
  4. Step 4: Simplify right side
    3,700.68x = 10,874,743.99
  5. Step 5: Solve for x
    x = 10,874,743.99/3,700.68
  6. Step 6: Final answer
    x = 2,938.58

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.