Home / 2,218.24-3,061.60-1,286.88

Finding the Fourth Proportional to 2,218.24, 3,061.60 and 1,286.88

Calculator

Solution

The fourth proportional to 2,218.24, 3,061.60 and 1,286.88 is: 1,776.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.24 : 3,061.60 = 1,286.88 : x
  2. Step 2: Convert to fraction form
    2,218.24/3,061.60 = 1,286.88/x
  3. Step 3: Cross multiply
    2,218.24x = 3,061.60 × 1,286.88
  4. Step 4: Simplify right side
    2,218.24x = 3,939,911.81
  5. Step 5: Solve for x
    x = 3,939,911.81/2,218.24
  6. Step 6: Final answer
    x = 1,776.14

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.