Home / 691-762

Finding the Third Proportional to 691 and 762

Calculator

Solution

The third proportional to 691 and 762 is: 840.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    691 : 762 = 762 : x
  2. Step 2: Convert to fraction form
    691/762 = 762/x
  3. Step 3: Cross multiply
    691x = 762 × 762
  4. Step 4: Simplify right side
    691x = 580,644
  5. Step 5: Solve for x
    x = 580,644/691
  6. Step 6: Final answer
    x = 840.30

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.