Home / 818.25-1,770

Finding the Third Proportional to 818.25 and 1,770

Calculator

Solution

The third proportional to 818.25 and 1,770 is: 3,828.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    818.25 : 1,770 = 1,770 : x
  2. Step 2: Convert to fraction form
    818.25/1,770 = 1,770/x
  3. Step 3: Cross multiply
    818.25x = 1,770 × 1,770
  4. Step 4: Simplify right side
    818.25x = 3,132,900
  5. Step 5: Solve for x
    x = 3,132,900/818.25
  6. Step 6: Final answer
    x = 3,828.78

Related Problems

Find third proportional to 409.13 and 885
Half scale
Find third proportional to 1,636.50 and 3,540
Double scale
Find third proportional to 820 and 1,774
Similar ratio
Find third proportional to 1,227.38 and 2,655
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.