Home / 1,146-1,272

Finding the Third Proportional to 1,146 and 1,272

Calculator

Solution

The third proportional to 1,146 and 1,272 is: 1,411.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,146 : 1,272 = 1,272 : x
  2. Step 2: Convert to fraction form
    1,146/1,272 = 1,272/x
  3. Step 3: Cross multiply
    1,146x = 1,272 × 1,272
  4. Step 4: Simplify right side
    1,146x = 1,617,984
  5. Step 5: Solve for x
    x = 1,617,984/1,146
  6. Step 6: Final answer
    x = 1,411.85

Related Problems

Find third proportional to 573 and 636
Half scale
Find third proportional to 2,292 and 2,544
Double scale
Find third proportional to 1,148 and 1,274
Similar ratio
Find third proportional to 1,719 and 1,908
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.