Home / 3,984-7,212

Finding the Third Proportional to 3,984 and 7,212

Calculator

Solution

The third proportional to 3,984 and 7,212 is: 13,055.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984 : 7,212 = 7,212 : x
  2. Step 2: Convert to fraction form
    3,984/7,212 = 7,212/x
  3. Step 3: Cross multiply
    3,984x = 7,212 × 7,212
  4. Step 4: Simplify right side
    3,984x = 52,012,944
  5. Step 5: Solve for x
    x = 52,012,944/3,984
  6. Step 6: Final answer
    x = 13,055.46

Related Problems

Find third proportional to 1,992 and 3,606
Half scale
Find third proportional to 7,968 and 14,424
Double scale
Find third proportional to 3,986 and 7,216
Similar ratio
Find third proportional to 5,976 and 10,818
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.81) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.