Home / 2,120-3,020

Finding the Third Proportional to 2,120 and 3,020

Calculator

Solution

The third proportional to 2,120 and 3,020 is: 4,302.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120 : 3,020 = 3,020 : x
  2. Step 2: Convert to fraction form
    2,120/3,020 = 3,020/x
  3. Step 3: Cross multiply
    2,120x = 3,020 × 3,020
  4. Step 4: Simplify right side
    2,120x = 9,120,400
  5. Step 5: Solve for x
    x = 9,120,400/2,120
  6. Step 6: Final answer
    x = 4,302.08

Related Problems

Find third proportional to 1,060 and 1,510
Half scale
Find third proportional to 4,240 and 6,040
Double scale
Find third proportional to 2,122 and 3,023
Similar ratio
Find third proportional to 3,180 and 4,530
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.