Home / 2,722.15-3,756.62-1,543.20

Finding the Fourth Proportional to 2,722.15, 3,756.62 and 1,543.20

Calculator

Solution

The fourth proportional to 2,722.15, 3,756.62 and 1,543.20 is: 2,129.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,722.15 : 3,756.62 = 1,543.20 : x
  2. Step 2: Convert to fraction form
    2,722.15/3,756.62 = 1,543.20/x
  3. Step 3: Cross multiply
    2,722.15x = 3,756.62 × 1,543.20
  4. Step 4: Simplify right side
    2,722.15x = 5,797,215.98
  5. Step 5: Solve for x
    x = 5,797,215.98/2,722.15
  6. Step 6: Final answer
    x = 2,129.65

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.