Home / 3,940-8,635

Finding the Third Proportional to 3,940 and 8,635

Calculator

Solution

The third proportional to 3,940 and 8,635 is: 18,924.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940 : 8,635 = 8,635 : x
  2. Step 2: Convert to fraction form
    3,940/8,635 = 8,635/x
  3. Step 3: Cross multiply
    3,940x = 8,635 × 8,635
  4. Step 4: Simplify right side
    3,940x = 74,563,225
  5. Step 5: Solve for x
    x = 74,563,225/3,940
  6. Step 6: Final answer
    x = 18,924.68

Related Problems

Find third proportional to 1,970 and 4,317.50
Half scale
Find third proportional to 7,880 and 17,270
Double scale
Find third proportional to 3,942 and 8,639
Similar ratio
Find third proportional to 5,910 and 12,952.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.