Home / 3.99-6-3.24

Finding the Fourth Proportional to 3.99, 6 and 3.24

Calculator

Solution

The fourth proportional to 3.99, 6 and 3.24 is: 4.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3.99 : 6 = 3.24 : x
  2. Step 2: Convert to fraction form
    3.99/6 = 3.24/x
  3. Step 3: Cross multiply
    3.99x = 6 × 3.24
  4. Step 4: Simplify right side
    3.99x = 19.44
  5. Step 5: Solve for x
    x = 19.44/3.99
  6. Step 6: Final answer
    x = 4.87

Related Problems

Find fourth proportional to 2.00, 3 and 1.62
Half scale
Find fourth proportional to 7.98, 12 and 6.48
Double scale
Find fourth proportional to 4.99, 7.50 and 4.24
Similar ratio
Find fourth proportional to 5.99, 9 and 4.86
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.