Home / 2,079.30-3,117.92-1,105.14

Finding the Fourth Proportional to 2,079.30, 3,117.92 and 1,105.14

Calculator

Solution

The fourth proportional to 2,079.30, 3,117.92 and 1,105.14 is: 1,657.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.30 : 3,117.92 = 1,105.14 : x
  2. Step 2: Convert to fraction form
    2,079.30/3,117.92 = 1,105.14/x
  3. Step 3: Cross multiply
    2,079.30x = 3,117.92 × 1,105.14
  4. Step 4: Simplify right side
    2,079.30x = 3,445,738.11
  5. Step 5: Solve for x
    x = 3,445,738.11/2,079.30
  6. Step 6: Final answer
    x = 1,657.16

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.