Home / 3,219-7,071

Finding the Third Proportional to 3,219 and 7,071

Calculator

Solution

The third proportional to 3,219 and 7,071 is: 15,532.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219 : 7,071 = 7,071 : x
  2. Step 2: Convert to fraction form
    3,219/7,071 = 7,071/x
  3. Step 3: Cross multiply
    3,219x = 7,071 × 7,071
  4. Step 4: Simplify right side
    3,219x = 49,999,041
  5. Step 5: Solve for x
    x = 49,999,041/3,219
  6. Step 6: Final answer
    x = 15,532.48

Related Problems

Find third proportional to 1,609.50 and 3,535.50
Half scale
Find third proportional to 6,438 and 14,142
Double scale
Find third proportional to 3,221 and 7,075
Similar ratio
Find third proportional to 4,828.50 and 10,606.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.