Home / 2,087.84-3,131.84-627.20

Finding the Fourth Proportional to 2,087.84, 3,131.84 and 627.20

Calculator

Solution

The fourth proportional to 2,087.84, 3,131.84 and 627.20 is: 940.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.84 : 3,131.84 = 627.20 : x
  2. Step 2: Convert to fraction form
    2,087.84/3,131.84 = 627.20/x
  3. Step 3: Cross multiply
    2,087.84x = 3,131.84 × 627.20
  4. Step 4: Simplify right side
    2,087.84x = 1,964,290.05
  5. Step 5: Solve for x
    x = 1,964,290.05/2,087.84
  6. Step 6: Final answer
    x = 940.82

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.