Home / 2,205-5,409

Finding the Third Proportional to 2,205 and 5,409

Calculator

Solution

The third proportional to 2,205 and 5,409 is: 13,268.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205 : 5,409 = 5,409 : x
  2. Step 2: Convert to fraction form
    2,205/5,409 = 5,409/x
  3. Step 3: Cross multiply
    2,205x = 5,409 × 5,409
  4. Step 4: Simplify right side
    2,205x = 29,257,281
  5. Step 5: Solve for x
    x = 29,257,281/2,205
  6. Step 6: Final answer
    x = 13,268.61

Related Problems

Why These Related Problems?

These problems maintain the same ratio (2.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.