Home / 3,858-5,406

Finding the Third Proportional to 3,858 and 5,406

Calculator

Solution

The third proportional to 3,858 and 5,406 is: 7,575.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858 : 5,406 = 5,406 : x
  2. Step 2: Convert to fraction form
    3,858/5,406 = 5,406/x
  3. Step 3: Cross multiply
    3,858x = 5,406 × 5,406
  4. Step 4: Simplify right side
    3,858x = 29,224,836
  5. Step 5: Solve for x
    x = 29,224,836/3,858
  6. Step 6: Final answer
    x = 7,575.13

Related Problems

Find third proportional to 1,929 and 2,703
Half scale
Find third proportional to 7,716 and 10,812
Double scale
Find third proportional to 3,860 and 5,409
Similar ratio
Find third proportional to 5,787 and 8,109
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.