Home / 1,984-4,087

Finding the Third Proportional to 1,984 and 4,087

Calculator

Solution

The third proportional to 1,984 and 4,087 is: 8,419.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984 : 4,087 = 4,087 : x
  2. Step 2: Convert to fraction form
    1,984/4,087 = 4,087/x
  3. Step 3: Cross multiply
    1,984x = 4,087 × 4,087
  4. Step 4: Simplify right side
    1,984x = 16,703,569
  5. Step 5: Solve for x
    x = 16,703,569/1,984
  6. Step 6: Final answer
    x = 8,419.14

Related Problems

Find third proportional to 992 and 2,043.50
Half scale
Find third proportional to 3,968 and 8,174
Double scale
Find third proportional to 1,986 and 4,091
Similar ratio
Find third proportional to 2,976 and 6,130.50
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.