Home / 1,102-2,639

Finding the Third Proportional to 1,102 and 2,639

Calculator

Solution

The third proportional to 1,102 and 2,639 is: 6,319.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102 : 2,639 = 2,639 : x
  2. Step 2: Convert to fraction form
    1,102/2,639 = 2,639/x
  3. Step 3: Cross multiply
    1,102x = 2,639 × 2,639
  4. Step 4: Simplify right side
    1,102x = 6,964,321
  5. Step 5: Solve for x
    x = 6,964,321/1,102
  6. Step 6: Final answer
    x = 6,319.71

Related Problems

Find third proportional to 551 and 1,319.50
Half scale
Find third proportional to 2,204 and 5,278
Double scale
Find third proportional to 1,104 and 2,644
Similar ratio
Find third proportional to 1,653 and 3,958.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.