Home / 866-1,979

Finding the Third Proportional to 866 and 1,979

Calculator

Solution

The third proportional to 866 and 1,979 is: 4,522.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    866 : 1,979 = 1,979 : x
  2. Step 2: Convert to fraction form
    866/1,979 = 1,979/x
  3. Step 3: Cross multiply
    866x = 1,979 × 1,979
  4. Step 4: Simplify right side
    866x = 3,916,441
  5. Step 5: Solve for x
    x = 3,916,441/866
  6. Step 6: Final answer
    x = 4,522.45

Related Problems

Find third proportional to 433 and 989.50
Half scale
Find third proportional to 1,732 and 3,958
Double scale
Find third proportional to 868 and 1,984
Similar ratio
Find third proportional to 1,299 and 2,968.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.