Home / 3,880-5,636

Finding the Third Proportional to 3,880 and 5,636

Calculator

Solution

The third proportional to 3,880 and 5,636 is: 8,186.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880 : 5,636 = 5,636 : x
  2. Step 2: Convert to fraction form
    3,880/5,636 = 5,636/x
  3. Step 3: Cross multiply
    3,880x = 5,636 × 5,636
  4. Step 4: Simplify right side
    3,880x = 31,764,496
  5. Step 5: Solve for x
    x = 31,764,496/3,880
  6. Step 6: Final answer
    x = 8,186.73

Related Problems

Find third proportional to 1,940 and 2,818
Half scale
Find third proportional to 7,760 and 11,272
Double scale
Find third proportional to 3,882 and 5,639
Similar ratio
Find third proportional to 5,820 and 8,454
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.