Home / 2,780.10-3,835.08-2,255.22

Finding the Fourth Proportional to 2,780.10, 3,835.08 and 2,255.22

Calculator

Solution

The fourth proportional to 2,780.10, 3,835.08 and 2,255.22 is: 3,111.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,780.10 : 3,835.08 = 2,255.22 : x
  2. Step 2: Convert to fraction form
    2,780.10/3,835.08 = 2,255.22/x
  3. Step 3: Cross multiply
    2,780.10x = 3,835.08 × 2,255.22
  4. Step 4: Simplify right side
    2,780.10x = 8,648,949.12
  5. Step 5: Solve for x
    x = 8,648,949.12/2,780.10
  6. Step 6: Final answer
    x = 3,111.02

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.