Home / 1,997-3,943

Finding the Third Proportional to 1,997 and 3,943

Calculator

Solution

The third proportional to 1,997 and 3,943 is: 7,785.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,997 : 3,943 = 3,943 : x
  2. Step 2: Convert to fraction form
    1,997/3,943 = 3,943/x
  3. Step 3: Cross multiply
    1,997x = 3,943 × 3,943
  4. Step 4: Simplify right side
    1,997x = 15,547,249
  5. Step 5: Solve for x
    x = 15,547,249/1,997
  6. Step 6: Final answer
    x = 7,785.30

Related Problems

Find third proportional to 998.50 and 1,971.50
Half scale
Find third proportional to 3,994 and 7,886
Double scale
Find third proportional to 1,999 and 3,947
Similar ratio
Find third proportional to 2,995.50 and 5,914.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.