Home / 879.19-1,189.69

Finding the Third Proportional to 879.19 and 1,189.69

Calculator

Solution

The third proportional to 879.19 and 1,189.69 is: 1,609.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    879.19 : 1,189.69 = 1,189.69 : x
  2. Step 2: Convert to fraction form
    879.19/1,189.69 = 1,189.69/x
  3. Step 3: Cross multiply
    879.19x = 1,189.69 × 1,189.69
  4. Step 4: Simplify right side
    879.19x = 1,415,356.35
  5. Step 5: Solve for x
    x = 1,415,356.35/879.19
  6. Step 6: Final answer
    x = 1,609.85

Related Problems

Find third proportional to 439.59 and 594.84
Half scale
Find third proportional to 1,758.38 and 2,379.38
Double scale
Find third proportional to 881 and 1,192
Similar ratio
Find third proportional to 1,318.78 and 1,784.53
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.