Home / 1.44-2-1.39

Finding the Fourth Proportional to 1.44, 2 and 1.39

Calculator

Solution

The fourth proportional to 1.44, 2 and 1.39 is: 1.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1.44 : 2 = 1.39 : x
  2. Step 2: Convert to fraction form
    1.44/2 = 1.39/x
  3. Step 3: Cross multiply
    1.44x = 2 × 1.39
  4. Step 4: Simplify right side
    1.44x = 2.78
  5. Step 5: Solve for x
    x = 2.78/1.44
  6. Step 6: Final answer
    x = 1.93

Related Problems

Find fourth proportional to 0.72, 1 and 0.70
Half scale
Find fourth proportional to 2.88, 4 and 2.78
Double scale
Find fourth proportional to 2.44, 3.39 and 2.39
Similar ratio
Find fourth proportional to 2.16, 3 and 2.09
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.