Home / 1.45-2-1.36

Finding the Fourth Proportional to 1.45, 2 and 1.36

Calculator

Solution

The fourth proportional to 1.45, 2 and 1.36 is: 1.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1.45 : 2 = 1.36 : x
  2. Step 2: Convert to fraction form
    1.45/2 = 1.36/x
  3. Step 3: Cross multiply
    1.45x = 2 × 1.36
  4. Step 4: Simplify right side
    1.45x = 2.72
  5. Step 5: Solve for x
    x = 2.72/1.45
  6. Step 6: Final answer
    x = 1.88

Related Problems

Find fourth proportional to 0.73, 1 and 0.68
Half scale
Find fourth proportional to 2.90, 4 and 2.72
Double scale
Find fourth proportional to 2.45, 3.38 and 2.36
Similar ratio
Find fourth proportional to 2.18, 3 and 2.04
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.