Home / 2.72-3.75-2

Finding the Fourth Proportional to 2.72, 3.75 and 2

Calculator

Solution

The fourth proportional to 2.72, 3.75 and 2 is: 2.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2.72 : 3.75 = 2 : x
  2. Step 2: Convert to fraction form
    2.72/3.75 = 2/x
  3. Step 3: Cross multiply
    2.72x = 3.75 × 2
  4. Step 4: Simplify right side
    2.72x = 7.50
  5. Step 5: Solve for x
    x = 7.50/2.72
  6. Step 6: Final answer
    x = 2.76

Related Problems

Find fourth proportional to 1.36, 1.88 and 1
Half scale
Find fourth proportional to 5.44, 7.50 and 4
Double scale
Find fourth proportional to 3.72, 5.13 and 3
Similar ratio
Find fourth proportional to 4.08, 5.63 and 3
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.