Home / 1,326-2,787

Finding the Third Proportional to 1,326 and 2,787

Calculator

Solution

The third proportional to 1,326 and 2,787 is: 5,857.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326 : 2,787 = 2,787 : x
  2. Step 2: Convert to fraction form
    1,326/2,787 = 2,787/x
  3. Step 3: Cross multiply
    1,326x = 2,787 × 2,787
  4. Step 4: Simplify right side
    1,326x = 7,767,369
  5. Step 5: Solve for x
    x = 7,767,369/1,326
  6. Step 6: Final answer
    x = 5,857.74

Related Problems

Find third proportional to 663 and 1,393.50
Half scale
Find third proportional to 2,652 and 5,574
Double scale
Find third proportional to 1,328 and 2,791
Similar ratio
Find third proportional to 1,989 and 4,180.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.