Home / 1,695-4,089

Finding the Third Proportional to 1,695 and 4,089

Calculator

Solution

The third proportional to 1,695 and 4,089 is: 9,864.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,695 : 4,089 = 4,089 : x
  2. Step 2: Convert to fraction form
    1,695/4,089 = 4,089/x
  3. Step 3: Cross multiply
    1,695x = 4,089 × 4,089
  4. Step 4: Simplify right side
    1,695x = 16,719,921
  5. Step 5: Solve for x
    x = 16,719,921/1,695
  6. Step 6: Final answer
    x = 9,864.26

Related Problems

Find third proportional to 847.50 and 2,044.50
Half scale
Find third proportional to 3,390 and 8,178
Double scale
Find third proportional to 1,697 and 4,094
Similar ratio
Find third proportional to 2,542.50 and 6,133.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.