Home / 3,778-7,816

Finding the Third Proportional to 3,778 and 7,816

Calculator

Solution

The third proportional to 3,778 and 7,816 is: 16,169.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778 : 7,816 = 7,816 : x
  2. Step 2: Convert to fraction form
    3,778/7,816 = 7,816/x
  3. Step 3: Cross multiply
    3,778x = 7,816 × 7,816
  4. Step 4: Simplify right side
    3,778x = 61,089,856
  5. Step 5: Solve for x
    x = 61,089,856/3,778
  6. Step 6: Final answer
    x = 16,169.89

Related Problems

Find third proportional to 1,889 and 3,908
Half scale
Find third proportional to 7,556 and 15,632
Double scale
Find third proportional to 3,780 and 7,820
Similar ratio
Find third proportional to 5,667 and 11,724
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.