Home / 2,390.63-3,581.28-2,255.76

Finding the Fourth Proportional to 2,390.63, 3,581.28 and 2,255.76

Calculator

Solution

The fourth proportional to 2,390.63, 3,581.28 and 2,255.76 is: 3,379.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.63 : 3,581.28 = 2,255.76 : x
  2. Step 2: Convert to fraction form
    2,390.63/3,581.28 = 2,255.76/x
  3. Step 3: Cross multiply
    2,390.63x = 3,581.28 × 2,255.76
  4. Step 4: Simplify right side
    2,390.63x = 8,078,508.17
  5. Step 5: Solve for x
    x = 8,078,508.17/2,390.63
  6. Step 6: Final answer
    x = 3,379.25

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.