Home / 3,988-8,600

Finding the Third Proportional to 3,988 and 8,600

Calculator

Solution

The third proportional to 3,988 and 8,600 is: 18,545.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988 : 8,600 = 8,600 : x
  2. Step 2: Convert to fraction form
    3,988/8,600 = 8,600/x
  3. Step 3: Cross multiply
    3,988x = 8,600 × 8,600
  4. Step 4: Simplify right side
    3,988x = 73,960,000
  5. Step 5: Solve for x
    x = 73,960,000/3,988
  6. Step 6: Final answer
    x = 18,545.64

Related Problems

Find third proportional to 1,994 and 4,300
Half scale
Find third proportional to 7,976 and 17,200
Double scale
Find third proportional to 3,990 and 8,604
Similar ratio
Find third proportional to 5,982 and 12,900
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.