Home / 827.50-1,817

Finding the Third Proportional to 827.50 and 1,817

Calculator

Solution

The third proportional to 827.50 and 1,817 is: 3,989.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    827.50 : 1,817 = 1,817 : x
  2. Step 2: Convert to fraction form
    827.50/1,817 = 1,817/x
  3. Step 3: Cross multiply
    827.50x = 1,817 × 1,817
  4. Step 4: Simplify right side
    827.50x = 3,301,489
  5. Step 5: Solve for x
    x = 3,301,489/827.50
  6. Step 6: Final answer
    x = 3,989.71

Related Problems

Find third proportional to 413.75 and 908.50
Half scale
Find third proportional to 1,655 and 3,634
Double scale
Find third proportional to 830 and 1,821
Similar ratio
Find third proportional to 1,241.25 and 2,725.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.