Home / 851.77-1,338.40

Finding the Third Proportional to 851.77 and 1,338.40

Calculator

Solution

The third proportional to 851.77 and 1,338.40 is: 2,103.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    851.77 : 1,338.40 = 1,338.40 : x
  2. Step 2: Convert to fraction form
    851.77/1,338.40 = 1,338.40/x
  3. Step 3: Cross multiply
    851.77x = 1,338.40 × 1,338.40
  4. Step 4: Simplify right side
    851.77x = 1,791,310.38
  5. Step 5: Solve for x
    x = 1,791,310.38/851.77
  6. Step 6: Final answer
    x = 2,103.06

Related Problems

Find third proportional to 425.88 and 669.20
Half scale
Find third proportional to 1,703.53 and 2,676.80
Double scale
Find third proportional to 854 and 1,342
Similar ratio
Find third proportional to 1,277.65 and 2,007.60
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.