Home / 838-1,255

Finding the Third Proportional to 838 and 1,255

Calculator

Solution

The third proportional to 838 and 1,255 is: 1,879.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    838 : 1,255 = 1,255 : x
  2. Step 2: Convert to fraction form
    838/1,255 = 1,255/x
  3. Step 3: Cross multiply
    838x = 1,255 × 1,255
  4. Step 4: Simplify right side
    838x = 1,575,025
  5. Step 5: Solve for x
    x = 1,575,025/838
  6. Step 6: Final answer
    x = 1,879.50

Related Problems

Find third proportional to 419 and 627.50
Half scale
Find third proportional to 1,676 and 2,510
Double scale
Find third proportional to 840 and 1,258
Similar ratio
Find third proportional to 1,257 and 1,882.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.