Home / 2.67-3.99-2

Finding the Fourth Proportional to 2.67, 3.99 and 2

Calculator

Solution

The fourth proportional to 2.67, 3.99 and 2 is: 2.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2.67 : 3.99 = 2 : x
  2. Step 2: Convert to fraction form
    2.67/3.99 = 2/x
  3. Step 3: Cross multiply
    2.67x = 3.99 × 2
  4. Step 4: Simplify right side
    2.67x = 7.98
  5. Step 5: Solve for x
    x = 7.98/2.67
  6. Step 6: Final answer
    x = 2.99

Related Problems

Find fourth proportional to 1.34, 2.00 and 1
Half scale
Find fourth proportional to 5.34, 7.98 and 4
Double scale
Find fourth proportional to 3.67, 5.48 and 3
Similar ratio
Find fourth proportional to 4.01, 5.99 and 3
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.