Home / 3,220-6,871

Finding the Third Proportional to 3,220 and 6,871

Calculator

Solution

The third proportional to 3,220 and 6,871 is: 14,661.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220 : 6,871 = 6,871 : x
  2. Step 2: Convert to fraction form
    3,220/6,871 = 6,871/x
  3. Step 3: Cross multiply
    3,220x = 6,871 × 6,871
  4. Step 4: Simplify right side
    3,220x = 47,210,641
  5. Step 5: Solve for x
    x = 47,210,641/3,220
  6. Step 6: Final answer
    x = 14,661.69

Related Problems

Find third proportional to 1,610 and 3,435.50
Half scale
Find third proportional to 6,440 and 13,742
Double scale
Find third proportional to 3,222 and 6,875
Similar ratio
Find third proportional to 4,830 and 10,306.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.