Home / 3,478-7,876

Finding the Third Proportional to 3,478 and 7,876

Calculator

Solution

The third proportional to 3,478 and 7,876 is: 17,835.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478 : 7,876 = 7,876 : x
  2. Step 2: Convert to fraction form
    3,478/7,876 = 7,876/x
  3. Step 3: Cross multiply
    3,478x = 7,876 × 7,876
  4. Step 4: Simplify right side
    3,478x = 62,031,376
  5. Step 5: Solve for x
    x = 62,031,376/3,478
  6. Step 6: Final answer
    x = 17,835.36

Related Problems

Find third proportional to 1,739 and 3,938
Half scale
Find third proportional to 6,956 and 15,752
Double scale
Find third proportional to 3,480 and 7,881
Similar ratio
Find third proportional to 5,217 and 11,814
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.26) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.