Home / 938.25-1,991.25

Finding the Third Proportional to 938.25 and 1,991.25

Calculator

Solution

The third proportional to 938.25 and 1,991.25 is: 4,226.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    938.25 : 1,991.25 = 1,991.25 : x
  2. Step 2: Convert to fraction form
    938.25/1,991.25 = 1,991.25/x
  3. Step 3: Cross multiply
    938.25x = 1,991.25 × 1,991.25
  4. Step 4: Simplify right side
    938.25x = 3,965,076.56
  5. Step 5: Solve for x
    x = 3,965,076.56/938.25
  6. Step 6: Final answer
    x = 4,226.03

Related Problems

Find third proportional to 469.13 and 995.63
Half scale
Find third proportional to 1,876.50 and 3,982.50
Double scale
Find third proportional to 940 and 1,995
Similar ratio
Find third proportional to 1,407.38 and 2,986.88
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.