Home / 822-1,818

Finding the Third Proportional to 822 and 1,818

Calculator

Solution

The third proportional to 822 and 1,818 is: 4,020.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    822 : 1,818 = 1,818 : x
  2. Step 2: Convert to fraction form
    822/1,818 = 1,818/x
  3. Step 3: Cross multiply
    822x = 1,818 × 1,818
  4. Step 4: Simplify right side
    822x = 3,305,124
  5. Step 5: Solve for x
    x = 3,305,124/822
  6. Step 6: Final answer
    x = 4,020.83

Related Problems

Find third proportional to 411 and 909
Half scale
Find third proportional to 1,644 and 3,636
Double scale
Find third proportional to 824 and 1,822
Similar ratio
Find third proportional to 1,233 and 2,727
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.