Home / 4-10.75

Finding the Third Proportional to 4 and 10.75

Calculator

Solution

The third proportional to 4 and 10.75 is: 28.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4 : 10.75 = 10.75 : x
  2. Step 2: Convert to fraction form
    4/10.75 = 10.75/x
  3. Step 3: Cross multiply
    4x = 10.75 × 10.75
  4. Step 4: Simplify right side
    4x = 115.56
  5. Step 5: Solve for x
    x = 115.56/4
  6. Step 6: Final answer
    x = 28.89

Related Problems

Find third proportional to 2 and 5.38
Half scale
Find third proportional to 8 and 21.50
Double scale
Find third proportional to 6 and 16
Similar ratio
Find third proportional to 6 and 16.13
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.69) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.