Home / 791.25-1,690.50

Finding the Third Proportional to 791.25 and 1,690.50

Calculator

Solution

The third proportional to 791.25 and 1,690.50 is: 3,611.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    791.25 : 1,690.50 = 1,690.50 : x
  2. Step 2: Convert to fraction form
    791.25/1,690.50 = 1,690.50/x
  3. Step 3: Cross multiply
    791.25x = 1,690.50 × 1,690.50
  4. Step 4: Simplify right side
    791.25x = 2,857,790.25
  5. Step 5: Solve for x
    x = 2,857,790.25/791.25
  6. Step 6: Final answer
    x = 3,611.74

Related Problems

Find third proportional to 395.63 and 845.25
Half scale
Find third proportional to 1,582.50 and 3,381
Double scale
Find third proportional to 793 and 1,695
Similar ratio
Find third proportional to 1,186.88 and 2,535.75
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.