Home / 769-1,284

Finding the Third Proportional to 769 and 1,284

Calculator

Solution

The third proportional to 769 and 1,284 is: 2,143.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    769 : 1,284 = 1,284 : x
  2. Step 2: Convert to fraction form
    769/1,284 = 1,284/x
  3. Step 3: Cross multiply
    769x = 1,284 × 1,284
  4. Step 4: Simplify right side
    769x = 1,648,656
  5. Step 5: Solve for x
    x = 1,648,656/769
  6. Step 6: Final answer
    x = 2,143.90

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.