Home / 605.25-1,305

Finding the Third Proportional to 605.25 and 1,305

Calculator

Solution

The third proportional to 605.25 and 1,305 is: 2,813.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.25 : 1,305 = 1,305 : x
  2. Step 2: Convert to fraction form
    605.25/1,305 = 1,305/x
  3. Step 3: Cross multiply
    605.25x = 1,305 × 1,305
  4. Step 4: Simplify right side
    605.25x = 1,703,025
  5. Step 5: Solve for x
    x = 1,703,025/605.25
  6. Step 6: Final answer
    x = 2,813.75

Related Problems

Find third proportional to 302.63 and 652.50
Half scale
Find third proportional to 1,210.50 and 2,610
Double scale
Find third proportional to 607 and 1,309
Similar ratio
Find third proportional to 907.88 and 1,957.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.