Home / 6,690-7,290

Finding the Third Proportional to 6,690 and 7,290

Calculator

Solution

The third proportional to 6,690 and 7,290 is: 7,943.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,690 : 7,290 = 7,290 : x
  2. Step 2: Convert to fraction form
    6,690/7,290 = 7,290/x
  3. Step 3: Cross multiply
    6,690x = 7,290 × 7,290
  4. Step 4: Simplify right side
    6,690x = 53,144,100
  5. Step 5: Solve for x
    x = 53,144,100/6,690
  6. Step 6: Final answer
    x = 7,943.81

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.