Home / 1,641-1,806

Finding the Third Proportional to 1,641 and 1,806

Calculator

Solution

The third proportional to 1,641 and 1,806 is: 1,987.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,641 : 1,806 = 1,806 : x
  2. Step 2: Convert to fraction form
    1,641/1,806 = 1,806/x
  3. Step 3: Cross multiply
    1,641x = 1,806 × 1,806
  4. Step 4: Simplify right side
    1,641x = 3,261,636
  5. Step 5: Solve for x
    x = 3,261,636/1,641
  6. Step 6: Final answer
    x = 1,987.59

Related Problems

Find third proportional to 820.50 and 903
Half scale
Find third proportional to 3,282 and 3,612
Double scale
Find third proportional to 1,643 and 1,808
Similar ratio
Find third proportional to 2,461.50 and 2,709
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.