Home / 1,568-2,115

Finding the Third Proportional to 1,568 and 2,115

Calculator

Solution

The third proportional to 1,568 and 2,115 is: 2,852.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,568 : 2,115 = 2,115 : x
  2. Step 2: Convert to fraction form
    1,568/2,115 = 2,115/x
  3. Step 3: Cross multiply
    1,568x = 2,115 × 2,115
  4. Step 4: Simplify right side
    1,568x = 4,473,225
  5. Step 5: Solve for x
    x = 4,473,225/1,568
  6. Step 6: Final answer
    x = 2,852.82

Related Problems

Find third proportional to 784 and 1,057.50
Half scale
Find third proportional to 3,136 and 4,230
Double scale
Find third proportional to 1,570 and 2,118
Similar ratio
Find third proportional to 2,352 and 3,172.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.