Home / 2,858-6,865

Finding the Third Proportional to 2,858 and 6,865

Calculator

Solution

The third proportional to 2,858 and 6,865 is: 16,489.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,858 : 6,865 = 6,865 : x
  2. Step 2: Convert to fraction form
    2,858/6,865 = 6,865/x
  3. Step 3: Cross multiply
    2,858x = 6,865 × 6,865
  4. Step 4: Simplify right side
    2,858x = 47,128,225
  5. Step 5: Solve for x
    x = 47,128,225/2,858
  6. Step 6: Final answer
    x = 16,489.93

Related Problems

Find third proportional to 1,429 and 3,432.50
Half scale
Find third proportional to 5,716 and 13,730
Double scale
Find third proportional to 2,860 and 6,870
Similar ratio
Find third proportional to 4,287 and 10,297.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.