Home / 2,820-6,170

Finding the Third Proportional to 2,820 and 6,170

Calculator

Solution

The third proportional to 2,820 and 6,170 is: 13,499.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820 : 6,170 = 6,170 : x
  2. Step 2: Convert to fraction form
    2,820/6,170 = 6,170/x
  3. Step 3: Cross multiply
    2,820x = 6,170 × 6,170
  4. Step 4: Simplify right side
    2,820x = 38,068,900
  5. Step 5: Solve for x
    x = 38,068,900/2,820
  6. Step 6: Final answer
    x = 13,499.61

Related Problems

Find third proportional to 1,410 and 3,085
Half scale
Find third proportional to 5,640 and 12,340
Double scale
Find third proportional to 2,822 and 6,174
Similar ratio
Find third proportional to 4,230 and 9,255
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.