Home / 759-815

Finding the Third Proportional to 759 and 815

Calculator

Solution

The third proportional to 759 and 815 is: 875.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    759 : 815 = 815 : x
  2. Step 2: Convert to fraction form
    759/815 = 815/x
  3. Step 3: Cross multiply
    759x = 815 × 815
  4. Step 4: Simplify right side
    759x = 664,225
  5. Step 5: Solve for x
    x = 664,225/759
  6. Step 6: Final answer
    x = 875.13

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.