Home / 3,489-7,212.75

Finding the Third Proportional to 3,489 and 7,212.75

Calculator

Solution

The third proportional to 3,489 and 7,212.75 is: 14,910.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489 : 7,212.75 = 7,212.75 : x
  2. Step 2: Convert to fraction form
    3,489/7,212.75 = 7,212.75/x
  3. Step 3: Cross multiply
    3,489x = 7,212.75 × 7,212.75
  4. Step 4: Simplify right side
    3,489x = 52,023,762.56
  5. Step 5: Solve for x
    x = 52,023,762.56/3,489
  6. Step 6: Final answer
    x = 14,910.79

Related Problems

Find third proportional to 1,744.50 and 3,606.38
Half scale
Find third proportional to 6,978 and 14,425.50
Double scale
Find third proportional to 3,491 and 7,217
Similar ratio
Find third proportional to 5,233.50 and 10,819.13
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.