Home / 873-1,857

Finding the Third Proportional to 873 and 1,857

Calculator

Solution

The third proportional to 873 and 1,857 is: 3,950.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    873 : 1,857 = 1,857 : x
  2. Step 2: Convert to fraction form
    873/1,857 = 1,857/x
  3. Step 3: Cross multiply
    873x = 1,857 × 1,857
  4. Step 4: Simplify right side
    873x = 3,448,449
  5. Step 5: Solve for x
    x = 3,448,449/873
  6. Step 6: Final answer
    x = 3,950.11

Related Problems

Find third proportional to 436.50 and 928.50
Half scale
Find third proportional to 1,746 and 3,714
Double scale
Find third proportional to 875 and 1,861
Similar ratio
Find third proportional to 1,309.50 and 2,785.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.