Home / 3,529-5,128

Finding the Third Proportional to 3,529 and 5,128

Calculator

Solution

The third proportional to 3,529 and 5,128 is: 7,451.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,529 : 5,128 = 5,128 : x
  2. Step 2: Convert to fraction form
    3,529/5,128 = 5,128/x
  3. Step 3: Cross multiply
    3,529x = 5,128 × 5,128
  4. Step 4: Simplify right side
    3,529x = 26,296,384
  5. Step 5: Solve for x
    x = 26,296,384/3,529
  6. Step 6: Final answer
    x = 7,451.51

Related Problems

Find third proportional to 1,764.50 and 2,564
Half scale
Find third proportional to 7,058 and 10,256
Double scale
Find third proportional to 3,531 and 5,131
Similar ratio
Find third proportional to 5,293.50 and 7,692
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.