Home / 3,979.50-8,742

Finding the Third Proportional to 3,979.50 and 8,742

Calculator

Solution

The third proportional to 3,979.50 and 8,742 is: 19,204.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.50 : 8,742 = 8,742 : x
  2. Step 2: Convert to fraction form
    3,979.50/8,742 = 8,742/x
  3. Step 3: Cross multiply
    3,979.50x = 8,742 × 8,742
  4. Step 4: Simplify right side
    3,979.50x = 76,422,564
  5. Step 5: Solve for x
    x = 76,422,564/3,979.50
  6. Step 6: Final answer
    x = 19,204.06

Related Problems

Find third proportional to 1,989.75 and 4,371
Half scale
Find third proportional to 7,959 and 17,484
Double scale
Find third proportional to 3,982 and 8,746
Similar ratio
Find third proportional to 5,969.25 and 13,113
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.