Home / 3,438-7,884

Finding the Third Proportional to 3,438 and 7,884

Calculator

Solution

The third proportional to 3,438 and 7,884 is: 18,079.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438 : 7,884 = 7,884 : x
  2. Step 2: Convert to fraction form
    3,438/7,884 = 7,884/x
  3. Step 3: Cross multiply
    3,438x = 7,884 × 7,884
  4. Step 4: Simplify right side
    3,438x = 62,157,456
  5. Step 5: Solve for x
    x = 62,157,456/3,438
  6. Step 6: Final answer
    x = 18,079.54

Related Problems

Find third proportional to 1,719 and 3,942
Half scale
Find third proportional to 6,876 and 15,768
Double scale
Find third proportional to 3,440 and 7,889
Similar ratio
Find third proportional to 5,157 and 11,826
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.