Home / 2,742-4,509

Finding the Third Proportional to 2,742 and 4,509

Calculator

Solution

The third proportional to 2,742 and 4,509 is: 7,414.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742 : 4,509 = 4,509 : x
  2. Step 2: Convert to fraction form
    2,742/4,509 = 4,509/x
  3. Step 3: Cross multiply
    2,742x = 4,509 × 4,509
  4. Step 4: Simplify right side
    2,742x = 20,331,081
  5. Step 5: Solve for x
    x = 20,331,081/2,742
  6. Step 6: Final answer
    x = 7,414.69

Related Problems

Find third proportional to 1,371 and 2,254.50
Half scale
Find third proportional to 5,484 and 9,018
Double scale
Find third proportional to 2,744 and 4,512
Similar ratio
Find third proportional to 4,113 and 6,763.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.