Home / 3,866-8,900

Finding the Third Proportional to 3,866 and 8,900

Calculator

Solution

The third proportional to 3,866 and 8,900 is: 20,488.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,866 : 8,900 = 8,900 : x
  2. Step 2: Convert to fraction form
    3,866/8,900 = 8,900/x
  3. Step 3: Cross multiply
    3,866x = 8,900 × 8,900
  4. Step 4: Simplify right side
    3,866x = 79,210,000
  5. Step 5: Solve for x
    x = 79,210,000/3,866
  6. Step 6: Final answer
    x = 20,488.88

Related Problems

Find third proportional to 1,933 and 4,450
Half scale
Find third proportional to 7,732 and 17,800
Double scale
Find third proportional to 3,868 and 8,905
Similar ratio
Find third proportional to 5,799 and 13,350
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.