Home / 3,890-7,316

Finding the Third Proportional to 3,890 and 7,316

Calculator

Solution

The third proportional to 3,890 and 7,316 is: 13,759.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890 : 7,316 = 7,316 : x
  2. Step 2: Convert to fraction form
    3,890/7,316 = 7,316/x
  3. Step 3: Cross multiply
    3,890x = 7,316 × 7,316
  4. Step 4: Simplify right side
    3,890x = 53,523,856
  5. Step 5: Solve for x
    x = 53,523,856/3,890
  6. Step 6: Final answer
    x = 13,759.35

Related Problems

Find third proportional to 1,945 and 3,658
Half scale
Find third proportional to 7,780 and 14,632
Double scale
Find third proportional to 3,892 and 7,320
Similar ratio
Find third proportional to 5,835 and 10,974
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.88) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.