Home / 843-1,838

Finding the Third Proportional to 843 and 1,838

Calculator

Solution

The third proportional to 843 and 1,838 is: 4,007.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    843 : 1,838 = 1,838 : x
  2. Step 2: Convert to fraction form
    843/1,838 = 1,838/x
  3. Step 3: Cross multiply
    843x = 1,838 × 1,838
  4. Step 4: Simplify right side
    843x = 3,378,244
  5. Step 5: Solve for x
    x = 3,378,244/843
  6. Step 6: Final answer
    x = 4,007.41

Related Problems

Find third proportional to 421.50 and 919
Half scale
Find third proportional to 1,686 and 3,676
Double scale
Find third proportional to 845 and 1,842
Similar ratio
Find third proportional to 1,264.50 and 2,757
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.