Home / 1,223-1,391

Finding the Third Proportional to 1,223 and 1,391

Calculator

Solution

The third proportional to 1,223 and 1,391 is: 1,582.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223 : 1,391 = 1,391 : x
  2. Step 2: Convert to fraction form
    1,223/1,391 = 1,391/x
  3. Step 3: Cross multiply
    1,223x = 1,391 × 1,391
  4. Step 4: Simplify right side
    1,223x = 1,934,881
  5. Step 5: Solve for x
    x = 1,934,881/1,223
  6. Step 6: Final answer
    x = 1,582.08

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.