Home / 3,312-6,840

Finding the Third Proportional to 3,312 and 6,840

Calculator

Solution

The third proportional to 3,312 and 6,840 is: 14,126.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312 : 6,840 = 6,840 : x
  2. Step 2: Convert to fraction form
    3,312/6,840 = 6,840/x
  3. Step 3: Cross multiply
    3,312x = 6,840 × 6,840
  4. Step 4: Simplify right side
    3,312x = 46,785,600
  5. Step 5: Solve for x
    x = 46,785,600/3,312
  6. Step 6: Final answer
    x = 14,126.09

Related Problems

Find third proportional to 1,656 and 3,420
Half scale
Find third proportional to 6,624 and 13,680
Double scale
Find third proportional to 3,314 and 6,844
Similar ratio
Find third proportional to 4,968 and 10,260
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.