Home / 1,979-4,182

Finding the Third Proportional to 1,979 and 4,182

Calculator

Solution

The third proportional to 1,979 and 4,182 is: 8,837.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979 : 4,182 = 4,182 : x
  2. Step 2: Convert to fraction form
    1,979/4,182 = 4,182/x
  3. Step 3: Cross multiply
    1,979x = 4,182 × 4,182
  4. Step 4: Simplify right side
    1,979x = 17,489,124
  5. Step 5: Solve for x
    x = 17,489,124/1,979
  6. Step 6: Final answer
    x = 8,837.35

Related Problems

Find third proportional to 989.50 and 2,091
Half scale
Find third proportional to 3,958 and 8,364
Double scale
Find third proportional to 1,981 and 4,186
Similar ratio
Find third proportional to 2,968.50 and 6,273
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.