Home / 3,889-8,510

Finding the Third Proportional to 3,889 and 8,510

Calculator

Solution

The third proportional to 3,889 and 8,510 is: 18,621.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,889 : 8,510 = 8,510 : x
  2. Step 2: Convert to fraction form
    3,889/8,510 = 8,510/x
  3. Step 3: Cross multiply
    3,889x = 8,510 × 8,510
  4. Step 4: Simplify right side
    3,889x = 72,420,100
  5. Step 5: Solve for x
    x = 72,420,100/3,889
  6. Step 6: Final answer
    x = 18,621.78

Related Problems

Find third proportional to 1,944.50 and 4,255
Half scale
Find third proportional to 7,778 and 17,020
Double scale
Find third proportional to 3,891 and 8,514
Similar ratio
Find third proportional to 5,833.50 and 12,765
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.