Home / 1,665-3,636

Finding the Third Proportional to 1,665 and 3,636

Calculator

Solution

The third proportional to 1,665 and 3,636 is: 7,940.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,665 : 3,636 = 3,636 : x
  2. Step 2: Convert to fraction form
    1,665/3,636 = 3,636/x
  3. Step 3: Cross multiply
    1,665x = 3,636 × 3,636
  4. Step 4: Simplify right side
    1,665x = 13,220,496
  5. Step 5: Solve for x
    x = 13,220,496/1,665
  6. Step 6: Final answer
    x = 7,940.24

Related Problems

Find third proportional to 832.50 and 1,818
Half scale
Find third proportional to 3,330 and 7,272
Double scale
Find third proportional to 1,667 and 3,640
Similar ratio
Find third proportional to 2,497.50 and 5,454
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.