Home / 3,405-6,351

Finding the Third Proportional to 3,405 and 6,351

Calculator

Solution

The third proportional to 3,405 and 6,351 is: 11,845.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405 : 6,351 = 6,351 : x
  2. Step 2: Convert to fraction form
    3,405/6,351 = 6,351/x
  3. Step 3: Cross multiply
    3,405x = 6,351 × 6,351
  4. Step 4: Simplify right side
    3,405x = 40,335,201
  5. Step 5: Solve for x
    x = 40,335,201/3,405
  6. Step 6: Final answer
    x = 11,845.87

Related Problems

Find third proportional to 1,702.50 and 3,175.50
Half scale
Find third proportional to 6,810 and 12,702
Double scale
Find third proportional to 3,407 and 6,355
Similar ratio
Find third proportional to 5,107.50 and 9,526.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.87) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.