Home / 2,940-4,620

Finding the Third Proportional to 2,940 and 4,620

Calculator

Solution

The third proportional to 2,940 and 4,620 is: 7,260

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,940 : 4,620 = 4,620 : x
  2. Step 2: Convert to fraction form
    2,940/4,620 = 4,620/x
  3. Step 3: Cross multiply
    2,940x = 4,620 × 4,620
  4. Step 4: Simplify right side
    2,940x = 21,344,400
  5. Step 5: Solve for x
    x = 21,344,400/2,940
  6. Step 6: Final answer
    x = 7,260

Related Problems

Find third proportional to 1,470 and 2,310
Half scale
Find third proportional to 5,880 and 9,240
Double scale
Find third proportional to 2,942 and 4,623
Similar ratio
Find third proportional to 4,410 and 6,930
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.