Home / 1,818-2,649

Finding the Third Proportional to 1,818 and 2,649

Calculator

Solution

The third proportional to 1,818 and 2,649 is: 3,859.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818 : 2,649 = 2,649 : x
  2. Step 2: Convert to fraction form
    1,818/2,649 = 2,649/x
  3. Step 3: Cross multiply
    1,818x = 2,649 × 2,649
  4. Step 4: Simplify right side
    1,818x = 7,017,201
  5. Step 5: Solve for x
    x = 7,017,201/1,818
  6. Step 6: Final answer
    x = 3,859.85

Related Problems

Find third proportional to 909 and 1,324.50
Half scale
Find third proportional to 3,636 and 5,298
Double scale
Find third proportional to 1,820 and 2,652
Similar ratio
Find third proportional to 2,727 and 3,973.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.