Home / 2,116.55-2,919.87-1,370.75

Finding the Fourth Proportional to 2,116.55, 2,919.87 and 1,370.75

Calculator

Solution

The fourth proportional to 2,116.55, 2,919.87 and 1,370.75 is: 1,891.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116.55 : 2,919.87 = 1,370.75 : x
  2. Step 2: Convert to fraction form
    2,116.55/2,919.87 = 1,370.75/x
  3. Step 3: Cross multiply
    2,116.55x = 2,919.87 × 1,370.75
  4. Step 4: Simplify right side
    2,116.55x = 4,002,397.20
  5. Step 5: Solve for x
    x = 4,002,397.20/2,116.55
  6. Step 6: Final answer
    x = 1,891.00

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.