Home / 3,838-5,407

Finding the Third Proportional to 3,838 and 5,407

Calculator

Solution

The third proportional to 3,838 and 5,407 is: 7,617.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,838 : 5,407 = 5,407 : x
  2. Step 2: Convert to fraction form
    3,838/5,407 = 5,407/x
  3. Step 3: Cross multiply
    3,838x = 5,407 × 5,407
  4. Step 4: Simplify right side
    3,838x = 29,235,649
  5. Step 5: Solve for x
    x = 29,235,649/3,838
  6. Step 6: Final answer
    x = 7,617.42

Related Problems

Find third proportional to 1,919 and 2,703.50
Half scale
Find third proportional to 7,676 and 10,814
Double scale
Find third proportional to 3,840 and 5,410
Similar ratio
Find third proportional to 5,757 and 8,110.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.