Home / 3,380-5,145

Finding the Third Proportional to 3,380 and 5,145

Calculator

Solution

The third proportional to 3,380 and 5,145 is: 7,831.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380 : 5,145 = 5,145 : x
  2. Step 2: Convert to fraction form
    3,380/5,145 = 5,145/x
  3. Step 3: Cross multiply
    3,380x = 5,145 × 5,145
  4. Step 4: Simplify right side
    3,380x = 26,471,025
  5. Step 5: Solve for x
    x = 26,471,025/3,380
  6. Step 6: Final answer
    x = 7,831.66

Related Problems

Find third proportional to 1,690 and 2,572.50
Half scale
Find third proportional to 6,760 and 10,290
Double scale
Find third proportional to 3,382 and 5,148
Similar ratio
Find third proportional to 5,070 and 7,717.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.