Home / 867-1,851

Finding the Third Proportional to 867 and 1,851

Calculator

Solution

The third proportional to 867 and 1,851 is: 3,951.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    867 : 1,851 = 1,851 : x
  2. Step 2: Convert to fraction form
    867/1,851 = 1,851/x
  3. Step 3: Cross multiply
    867x = 1,851 × 1,851
  4. Step 4: Simplify right side
    867x = 3,426,201
  5. Step 5: Solve for x
    x = 3,426,201/867
  6. Step 6: Final answer
    x = 3,951.79

Related Problems

Find third proportional to 433.50 and 925.50
Half scale
Find third proportional to 1,734 and 3,702
Double scale
Find third proportional to 869 and 1,855
Similar ratio
Find third proportional to 1,300.50 and 2,776.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.