Home / 2,560-4,560

Finding the Third Proportional to 2,560 and 4,560

Calculator

Solution

The third proportional to 2,560 and 4,560 is: 8,122.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,560 : 4,560 = 4,560 : x
  2. Step 2: Convert to fraction form
    2,560/4,560 = 4,560/x
  3. Step 3: Cross multiply
    2,560x = 4,560 × 4,560
  4. Step 4: Simplify right side
    2,560x = 20,793,600
  5. Step 5: Solve for x
    x = 20,793,600/2,560
  6. Step 6: Final answer
    x = 8,122.50

Related Problems

Find third proportional to 1,280 and 2,280
Half scale
Find third proportional to 5,120 and 9,120
Double scale
Find third proportional to 2,562 and 4,564
Similar ratio
Find third proportional to 3,840 and 6,840
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.