Home / 878-2,315

Finding the Third Proportional to 878 and 2,315

Calculator

Solution

The third proportional to 878 and 2,315 is: 6,103.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    878 : 2,315 = 2,315 : x
  2. Step 2: Convert to fraction form
    878/2,315 = 2,315/x
  3. Step 3: Cross multiply
    878x = 2,315 × 2,315
  4. Step 4: Simplify right side
    878x = 5,359,225
  5. Step 5: Solve for x
    x = 5,359,225/878
  6. Step 6: Final answer
    x = 6,103.90

Related Problems

Find third proportional to 439 and 1,157.50
Half scale
Find third proportional to 1,756 and 4,630
Double scale
Find third proportional to 880 and 2,320
Similar ratio
Find third proportional to 1,317 and 3,472.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.