Home / 939.38-1,938.38

Finding the Third Proportional to 939.38 and 1,938.38

Calculator

Solution

The third proportional to 939.38 and 1,938.38 is: 3,999.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    939.38 : 1,938.38 = 1,938.38 : x
  2. Step 2: Convert to fraction form
    939.38/1,938.38 = 1,938.38/x
  3. Step 3: Cross multiply
    939.38x = 1,938.38 × 1,938.38
  4. Step 4: Simplify right side
    939.38x = 3,757,297.64
  5. Step 5: Solve for x
    x = 3,757,297.64/939.38
  6. Step 6: Final answer
    x = 3,999.78

Related Problems

Find third proportional to 469.69 and 969.19
Half scale
Find third proportional to 1,878.75 and 3,876.75
Double scale
Find third proportional to 941 and 1,943
Similar ratio
Find third proportional to 1,409.06 and 2,907.56
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.