Home / 3,940-6,348

Finding the Third Proportional to 3,940 and 6,348

Calculator

Solution

The third proportional to 3,940 and 6,348 is: 10,227.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940 : 6,348 = 6,348 : x
  2. Step 2: Convert to fraction form
    3,940/6,348 = 6,348/x
  3. Step 3: Cross multiply
    3,940x = 6,348 × 6,348
  4. Step 4: Simplify right side
    3,940x = 40,297,104
  5. Step 5: Solve for x
    x = 40,297,104/3,940
  6. Step 6: Final answer
    x = 10,227.69

Related Problems

Find third proportional to 1,970 and 3,174
Half scale
Find third proportional to 7,880 and 12,696
Double scale
Find third proportional to 3,942 and 6,351
Similar ratio
Find third proportional to 5,910 and 9,522
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.