Home / 2,560-5,440

Finding the Third Proportional to 2,560 and 5,440

Calculator

Solution

The third proportional to 2,560 and 5,440 is: 11,560

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,560 : 5,440 = 5,440 : x
  2. Step 2: Convert to fraction form
    2,560/5,440 = 5,440/x
  3. Step 3: Cross multiply
    2,560x = 5,440 × 5,440
  4. Step 4: Simplify right side
    2,560x = 29,593,600
  5. Step 5: Solve for x
    x = 29,593,600/2,560
  6. Step 6: Final answer
    x = 11,560

Related Problems

Find third proportional to 1,280 and 2,720
Half scale
Find third proportional to 5,120 and 10,880
Double scale
Find third proportional to 2,562 and 5,444
Similar ratio
Find third proportional to 3,840 and 8,160
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.