Home / 862-1,778

Finding the Third Proportional to 862 and 1,778

Calculator

Solution

The third proportional to 862 and 1,778 is: 3,667.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    862 : 1,778 = 1,778 : x
  2. Step 2: Convert to fraction form
    862/1,778 = 1,778/x
  3. Step 3: Cross multiply
    862x = 1,778 × 1,778
  4. Step 4: Simplify right side
    862x = 3,161,284
  5. Step 5: Solve for x
    x = 3,161,284/862
  6. Step 6: Final answer
    x = 3,667.38

Related Problems

Find third proportional to 431 and 889
Half scale
Find third proportional to 1,724 and 3,556
Double scale
Find third proportional to 864 and 1,782
Similar ratio
Find third proportional to 1,293 and 2,667
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.