Home / 1,261-2,942

Finding the Third Proportional to 1,261 and 2,942

Calculator

Solution

The third proportional to 1,261 and 2,942 is: 6,863.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261 : 2,942 = 2,942 : x
  2. Step 2: Convert to fraction form
    1,261/2,942 = 2,942/x
  3. Step 3: Cross multiply
    1,261x = 2,942 × 2,942
  4. Step 4: Simplify right side
    1,261x = 8,655,364
  5. Step 5: Solve for x
    x = 8,655,364/1,261
  6. Step 6: Final answer
    x = 6,863.89

Related Problems

Find third proportional to 630.50 and 1,471
Half scale
Find third proportional to 2,522 and 5,884
Double scale
Find third proportional to 1,263 and 2,947
Similar ratio
Find third proportional to 1,891.50 and 4,413
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.