Home / 1,192-1,290

Finding the Third Proportional to 1,192 and 1,290

Calculator

Solution

The third proportional to 1,192 and 1,290 is: 1,396.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192 : 1,290 = 1,290 : x
  2. Step 2: Convert to fraction form
    1,192/1,290 = 1,290/x
  3. Step 3: Cross multiply
    1,192x = 1,290 × 1,290
  4. Step 4: Simplify right side
    1,192x = 1,664,100
  5. Step 5: Solve for x
    x = 1,664,100/1,192
  6. Step 6: Final answer
    x = 1,396.06

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.