Home / 1,142-1,238

Finding the Third Proportional to 1,142 and 1,238

Calculator

Solution

The third proportional to 1,142 and 1,238 is: 1,342.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142 : 1,238 = 1,238 : x
  2. Step 2: Convert to fraction form
    1,142/1,238 = 1,238/x
  3. Step 3: Cross multiply
    1,142x = 1,238 × 1,238
  4. Step 4: Simplify right side
    1,142x = 1,532,644
  5. Step 5: Solve for x
    x = 1,532,644/1,142
  6. Step 6: Final answer
    x = 1,342.07

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.