Home / 1,936-3,920

Finding the Third Proportional to 1,936 and 3,920

Calculator

Solution

The third proportional to 1,936 and 3,920 is: 7,937.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936 : 3,920 = 3,920 : x
  2. Step 2: Convert to fraction form
    1,936/3,920 = 3,920/x
  3. Step 3: Cross multiply
    1,936x = 3,920 × 3,920
  4. Step 4: Simplify right side
    1,936x = 15,366,400
  5. Step 5: Solve for x
    x = 15,366,400/1,936
  6. Step 6: Final answer
    x = 7,937.19

Related Problems

Find third proportional to 968 and 1,960
Half scale
Find third proportional to 3,872 and 7,840
Double scale
Find third proportional to 1,938 and 3,924
Similar ratio
Find third proportional to 2,904 and 5,880
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.02) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.