Home / 3,815.81-5,265.20-2,137.29

Finding the Fourth Proportional to 3,815.81, 5,265.20 and 2,137.29

Calculator

Solution

The fourth proportional to 3,815.81, 5,265.20 and 2,137.29 is: 2,949.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.81 : 5,265.20 = 2,137.29 : x
  2. Step 2: Convert to fraction form
    3,815.81/5,265.20 = 2,137.29/x
  3. Step 3: Cross multiply
    3,815.81x = 5,265.20 × 2,137.29
  4. Step 4: Simplify right side
    3,815.81x = 11,253,259.31
  5. Step 5: Solve for x
    x = 11,253,259.31/3,815.81
  6. Step 6: Final answer
    x = 2,949.11

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.