Home / 1,243-1,819

Finding the Third Proportional to 1,243 and 1,819

Calculator

Solution

The third proportional to 1,243 and 1,819 is: 2,661.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243 : 1,819 = 1,819 : x
  2. Step 2: Convert to fraction form
    1,243/1,819 = 1,819/x
  3. Step 3: Cross multiply
    1,243x = 1,819 × 1,819
  4. Step 4: Simplify right side
    1,243x = 3,308,761
  5. Step 5: Solve for x
    x = 3,308,761/1,243
  6. Step 6: Final answer
    x = 2,661.92

Related Problems

Find third proportional to 621.50 and 909.50
Half scale
Find third proportional to 2,486 and 3,638
Double scale
Find third proportional to 1,245 and 1,822
Similar ratio
Find third proportional to 1,864.50 and 2,728.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.