Home / 3,888-6,840

Finding the Third Proportional to 3,888 and 6,840

Calculator

Solution

The third proportional to 3,888 and 6,840 is: 12,033.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888 : 6,840 = 6,840 : x
  2. Step 2: Convert to fraction form
    3,888/6,840 = 6,840/x
  3. Step 3: Cross multiply
    3,888x = 6,840 × 6,840
  4. Step 4: Simplify right side
    3,888x = 46,785,600
  5. Step 5: Solve for x
    x = 46,785,600/3,888
  6. Step 6: Final answer
    x = 12,033.33

Related Problems

Find third proportional to 1,944 and 3,420
Half scale
Find third proportional to 7,776 and 13,680
Double scale
Find third proportional to 3,890 and 6,844
Similar ratio
Find third proportional to 5,832 and 10,260
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.76) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.