Home / 6,749-7,289

Finding the Third Proportional to 6,749 and 7,289

Calculator

Solution

The third proportional to 6,749 and 7,289 is: 7,872.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,749 : 7,289 = 7,289 : x
  2. Step 2: Convert to fraction form
    6,749/7,289 = 7,289/x
  3. Step 3: Cross multiply
    6,749x = 7,289 × 7,289
  4. Step 4: Simplify right side
    6,749x = 53,129,521
  5. Step 5: Solve for x
    x = 53,129,521/6,749
  6. Step 6: Final answer
    x = 7,872.21

Related Problems

Find third proportional to 3,374.50 and 3,644.50
Half scale
Find third proportional to 13,498 and 14,578
Double scale
Find third proportional to 6,751 and 7,291
Similar ratio
Find third proportional to 10,123.50 and 10,933.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.