Home / 3,785-8,320

Finding the Third Proportional to 3,785 and 8,320

Calculator

Solution

The third proportional to 3,785 and 8,320 is: 18,288.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785 : 8,320 = 8,320 : x
  2. Step 2: Convert to fraction form
    3,785/8,320 = 8,320/x
  3. Step 3: Cross multiply
    3,785x = 8,320 × 8,320
  4. Step 4: Simplify right side
    3,785x = 69,222,400
  5. Step 5: Solve for x
    x = 69,222,400/3,785
  6. Step 6: Final answer
    x = 18,288.61

Related Problems

Find third proportional to 1,892.50 and 4,160
Half scale
Find third proportional to 7,570 and 16,640
Double scale
Find third proportional to 3,787 and 8,324
Similar ratio
Find third proportional to 5,677.50 and 12,480
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.