Home / 991.26-1,367.81-549.14

Finding the Fourth Proportional to 991.26, 1,367.81 and 549.14

Calculator

Solution

The fourth proportional to 991.26, 1,367.81 and 549.14 is: 757.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    991.26 : 1,367.81 = 549.14 : x
  2. Step 2: Convert to fraction form
    991.26/1,367.81 = 549.14/x
  3. Step 3: Cross multiply
    991.26x = 1,367.81 × 549.14
  4. Step 4: Simplify right side
    991.26x = 751,119.18
  5. Step 5: Solve for x
    x = 751,119.18/991.26
  6. Step 6: Final answer
    x = 757.74

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.