Home / 843.75-1,857

Finding the Third Proportional to 843.75 and 1,857

Calculator

Solution

The third proportional to 843.75 and 1,857 is: 4,087.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    843.75 : 1,857 = 1,857 : x
  2. Step 2: Convert to fraction form
    843.75/1,857 = 1,857/x
  3. Step 3: Cross multiply
    843.75x = 1,857 × 1,857
  4. Step 4: Simplify right side
    843.75x = 3,448,449
  5. Step 5: Solve for x
    x = 3,448,449/843.75
  6. Step 6: Final answer
    x = 4,087.05

Related Problems

Find third proportional to 421.88 and 928.50
Half scale
Find third proportional to 1,687.50 and 3,714
Double scale
Find third proportional to 846 and 1,861
Similar ratio
Find third proportional to 1,265.63 and 2,785.50
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.