Home / 862.88-2,131.88

Finding the Third Proportional to 862.88 and 2,131.88

Calculator

Solution

The third proportional to 862.88 and 2,131.88 is: 5,267.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    862.88 : 2,131.88 = 2,131.88 : x
  2. Step 2: Convert to fraction form
    862.88/2,131.88 = 2,131.88/x
  3. Step 3: Cross multiply
    862.88x = 2,131.88 × 2,131.88
  4. Step 4: Simplify right side
    862.88x = 4,544,891.02
  5. Step 5: Solve for x
    x = 4,544,891.02/862.88
  6. Step 6: Final answer
    x = 5,267.15

Related Problems

Find third proportional to 431.44 and 1,065.94
Half scale
Find third proportional to 1,725.75 and 4,263.75
Double scale
Find third proportional to 865 and 2,137
Similar ratio
Find third proportional to 1,294.31 and 3,197.81
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.