Home / 816.75-2,112.75

Finding the Third Proportional to 816.75 and 2,112.75

Calculator

Solution

The third proportional to 816.75 and 2,112.75 is: 5,465.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    816.75 : 2,112.75 = 2,112.75 : x
  2. Step 2: Convert to fraction form
    816.75/2,112.75 = 2,112.75/x
  3. Step 3: Cross multiply
    816.75x = 2,112.75 × 2,112.75
  4. Step 4: Simplify right side
    816.75x = 4,463,712.56
  5. Step 5: Solve for x
    x = 4,463,712.56/816.75
  6. Step 6: Final answer
    x = 5,465.21

Related Problems

Find third proportional to 408.38 and 1,056.38
Half scale
Find third proportional to 1,633.50 and 4,225.50
Double scale
Find third proportional to 819 and 2,118
Similar ratio
Find third proportional to 1,225.13 and 3,169.13
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.