Home / 855.75-1,286.25

Finding the Third Proportional to 855.75 and 1,286.25

Calculator

Solution

The third proportional to 855.75 and 1,286.25 is: 1,933.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    855.75 : 1,286.25 = 1,286.25 : x
  2. Step 2: Convert to fraction form
    855.75/1,286.25 = 1,286.25/x
  3. Step 3: Cross multiply
    855.75x = 1,286.25 × 1,286.25
  4. Step 4: Simplify right side
    855.75x = 1,654,439.06
  5. Step 5: Solve for x
    x = 1,654,439.06/855.75
  6. Step 6: Final answer
    x = 1,933.32

Related Problems

Find third proportional to 427.88 and 643.13
Half scale
Find third proportional to 1,711.50 and 2,572.50
Double scale
Find third proportional to 858 and 1,289
Similar ratio
Find third proportional to 1,283.63 and 1,929.38
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.