Home / 1,871-2,813

Finding the Third Proportional to 1,871 and 2,813

Calculator

Solution

The third proportional to 1,871 and 2,813 is: 4,229.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871 : 2,813 = 2,813 : x
  2. Step 2: Convert to fraction form
    1,871/2,813 = 2,813/x
  3. Step 3: Cross multiply
    1,871x = 2,813 × 2,813
  4. Step 4: Simplify right side
    1,871x = 7,912,969
  5. Step 5: Solve for x
    x = 7,912,969/1,871
  6. Step 6: Final answer
    x = 4,229.27

Related Problems

Find third proportional to 935.50 and 1,406.50
Half scale
Find third proportional to 3,742 and 5,626
Double scale
Find third proportional to 1,873 and 2,816
Similar ratio
Find third proportional to 2,806.50 and 4,219.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.