Home / 1,309-3,250

Finding the Third Proportional to 1,309 and 3,250

Calculator

Solution

The third proportional to 1,309 and 3,250 is: 8,069.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309 : 3,250 = 3,250 : x
  2. Step 2: Convert to fraction form
    1,309/3,250 = 3,250/x
  3. Step 3: Cross multiply
    1,309x = 3,250 × 3,250
  4. Step 4: Simplify right side
    1,309x = 10,562,500
  5. Step 5: Solve for x
    x = 10,562,500/1,309
  6. Step 6: Final answer
    x = 8,069.14

Related Problems

Find third proportional to 654.50 and 1,625
Half scale
Find third proportional to 2,618 and 6,500
Double scale
Find third proportional to 1,311 and 3,255
Similar ratio
Find third proportional to 1,963.50 and 4,875
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.