Home / 1,203-1,891

Finding the Third Proportional to 1,203 and 1,891

Calculator

Solution

The third proportional to 1,203 and 1,891 is: 2,972.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203 : 1,891 = 1,891 : x
  2. Step 2: Convert to fraction form
    1,203/1,891 = 1,891/x
  3. Step 3: Cross multiply
    1,203x = 1,891 × 1,891
  4. Step 4: Simplify right side
    1,203x = 3,575,881
  5. Step 5: Solve for x
    x = 3,575,881/1,203
  6. Step 6: Final answer
    x = 2,972.47

Related Problems

Find third proportional to 601.50 and 945.50
Half scale
Find third proportional to 2,406 and 3,782
Double scale
Find third proportional to 1,205 and 1,894
Similar ratio
Find third proportional to 1,804.50 and 2,836.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.