Home / 7.22-10.84-4

Finding the Fourth Proportional to 7.22, 10.84 and 4

Calculator

Solution

The fourth proportional to 7.22, 10.84 and 4 is: 6.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7.22 : 10.84 = 4 : x
  2. Step 2: Convert to fraction form
    7.22/10.84 = 4/x
  3. Step 3: Cross multiply
    7.22x = 10.84 × 4
  4. Step 4: Simplify right side
    7.22x = 43.36
  5. Step 5: Solve for x
    x = 43.36/7.22
  6. Step 6: Final answer
    x = 6.01

Related Problems

Find fourth proportional to 3.61, 5.42 and 2
Half scale
Find fourth proportional to 14.44, 21.68 and 8
Double scale
Find fourth proportional to 8.22, 12.34 and 5
Similar ratio
Find fourth proportional to 10.83, 16.26 and 6
1.5x scale

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.