Home / 2,128-3,664

Finding the Third Proportional to 2,128 and 3,664

Calculator

Solution

The third proportional to 2,128 and 3,664 is: 6,308.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128 : 3,664 = 3,664 : x
  2. Step 2: Convert to fraction form
    2,128/3,664 = 3,664/x
  3. Step 3: Cross multiply
    2,128x = 3,664 × 3,664
  4. Step 4: Simplify right side
    2,128x = 13,424,896
  5. Step 5: Solve for x
    x = 13,424,896/2,128
  6. Step 6: Final answer
    x = 6,308.69

Related Problems

Find third proportional to 1,064 and 1,832
Half scale
Find third proportional to 4,256 and 7,328
Double scale
Find third proportional to 2,130 and 3,667
Similar ratio
Find third proportional to 3,192 and 5,496
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.72) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.