Home / 868.13-1,857.38

Finding the Third Proportional to 868.13 and 1,857.38

Calculator

Solution

The third proportional to 868.13 and 1,857.38 is: 3,973.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    868.13 : 1,857.38 = 1,857.38 : x
  2. Step 2: Convert to fraction form
    868.13/1,857.38 = 1,857.38/x
  3. Step 3: Cross multiply
    868.13x = 1,857.38 × 1,857.38
  4. Step 4: Simplify right side
    868.13x = 3,449,841.89
  5. Step 5: Solve for x
    x = 3,449,841.89/868.13
  6. Step 6: Final answer
    x = 3,973.90

Related Problems

Find third proportional to 434.06 and 928.69
Half scale
Find third proportional to 1,736.25 and 3,714.75
Double scale
Find third proportional to 870 and 1,862
Similar ratio
Find third proportional to 1,302.19 and 2,786.06
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.