Home / 1,389-2,601

Finding the Third Proportional to 1,389 and 2,601

Calculator

Solution

The third proportional to 1,389 and 2,601 is: 4,870.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389 : 2,601 = 2,601 : x
  2. Step 2: Convert to fraction form
    1,389/2,601 = 2,601/x
  3. Step 3: Cross multiply
    1,389x = 2,601 × 2,601
  4. Step 4: Simplify right side
    1,389x = 6,765,201
  5. Step 5: Solve for x
    x = 6,765,201/1,389
  6. Step 6: Final answer
    x = 4,870.56

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.87) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.