Home / 4.36-6-3.85

Finding the Fourth Proportional to 4.36, 6 and 3.85

Calculator

Solution

The fourth proportional to 4.36, 6 and 3.85 is: 5.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.36 : 6 = 3.85 : x
  2. Step 2: Convert to fraction form
    4.36/6 = 3.85/x
  3. Step 3: Cross multiply
    4.36x = 6 × 3.85
  4. Step 4: Simplify right side
    4.36x = 23.10
  5. Step 5: Solve for x
    x = 23.10/4.36
  6. Step 6: Final answer
    x = 5.30

Related Problems

Find fourth proportional to 2.18, 3 and 1.93
Half scale
Find fourth proportional to 8.72, 12 and 7.70
Double scale
Find fourth proportional to 5.36, 7.38 and 4.85
Similar ratio
Find fourth proportional to 6.54, 9 and 5.78
1.5x scale

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.