Home / 1,377-2,721

Finding the Third Proportional to 1,377 and 2,721

Calculator

Solution

The third proportional to 1,377 and 2,721 is: 5,376.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377 : 2,721 = 2,721 : x
  2. Step 2: Convert to fraction form
    1,377/2,721 = 2,721/x
  3. Step 3: Cross multiply
    1,377x = 2,721 × 2,721
  4. Step 4: Simplify right side
    1,377x = 7,403,841
  5. Step 5: Solve for x
    x = 7,403,841/1,377
  6. Step 6: Final answer
    x = 5,376.79

Related Problems

Find third proportional to 688.50 and 1,360.50
Half scale
Find third proportional to 2,754 and 5,442
Double scale
Find third proportional to 1,379 and 2,725
Similar ratio
Find third proportional to 2,065.50 and 4,081.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.98) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.