Home / 3,921-7,410

Finding the Third Proportional to 3,921 and 7,410

Calculator

Solution

The third proportional to 3,921 and 7,410 is: 14,003.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921 : 7,410 = 7,410 : x
  2. Step 2: Convert to fraction form
    3,921/7,410 = 7,410/x
  3. Step 3: Cross multiply
    3,921x = 7,410 × 7,410
  4. Step 4: Simplify right side
    3,921x = 54,908,100
  5. Step 5: Solve for x
    x = 54,908,100/3,921
  6. Step 6: Final answer
    x = 14,003.60

Related Problems

Find third proportional to 1,960.50 and 3,705
Half scale
Find third proportional to 7,842 and 14,820
Double scale
Find third proportional to 3,923 and 7,414
Similar ratio
Find third proportional to 5,881.50 and 11,115
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.89) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.