Home / 1,621-1,768

Finding the Third Proportional to 1,621 and 1,768

Calculator

Solution

The third proportional to 1,621 and 1,768 is: 1,928.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621 : 1,768 = 1,768 : x
  2. Step 2: Convert to fraction form
    1,621/1,768 = 1,768/x
  3. Step 3: Cross multiply
    1,621x = 1,768 × 1,768
  4. Step 4: Simplify right side
    1,621x = 3,125,824
  5. Step 5: Solve for x
    x = 3,125,824/1,621
  6. Step 6: Final answer
    x = 1,928.33

Related Problems

Find third proportional to 810.50 and 884
Half scale
Find third proportional to 3,242 and 3,536
Double scale
Find third proportional to 1,623 and 1,770
Similar ratio
Find third proportional to 2,431.50 and 2,652
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.