Home / 2,872-4,270

Finding the Third Proportional to 2,872 and 4,270

Calculator

Solution

The third proportional to 2,872 and 4,270 is: 6,348.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872 : 4,270 = 4,270 : x
  2. Step 2: Convert to fraction form
    2,872/4,270 = 4,270/x
  3. Step 3: Cross multiply
    2,872x = 4,270 × 4,270
  4. Step 4: Simplify right side
    2,872x = 18,232,900
  5. Step 5: Solve for x
    x = 18,232,900/2,872
  6. Step 6: Final answer
    x = 6,348.50

Related Problems

Find third proportional to 1,436 and 2,135
Half scale
Find third proportional to 5,744 and 8,540
Double scale
Find third proportional to 2,874 and 4,273
Similar ratio
Find third proportional to 4,308 and 6,405
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.