Home / 2,418.99-3,339.81-2,156.55

Finding the Fourth Proportional to 2,418.99, 3,339.81 and 2,156.55

Calculator

Solution

The fourth proportional to 2,418.99, 3,339.81 and 2,156.55 is: 2,977.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,418.99 : 3,339.81 = 2,156.55 : x
  2. Step 2: Convert to fraction form
    2,418.99/3,339.81 = 2,156.55/x
  3. Step 3: Cross multiply
    2,418.99x = 3,339.81 × 2,156.55
  4. Step 4: Simplify right side
    2,418.99x = 7,202,467.26
  5. Step 5: Solve for x
    x = 7,202,467.26/2,418.99
  6. Step 6: Final answer
    x = 2,977.47

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.