Home / 799.31-1,515.09

Finding the Third Proportional to 799.31 and 1,515.09

Calculator

Solution

The third proportional to 799.31 and 1,515.09 is: 2,871.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    799.31 : 1,515.09 = 1,515.09 : x
  2. Step 2: Convert to fraction form
    799.31/1,515.09 = 1,515.09/x
  3. Step 3: Cross multiply
    799.31x = 1,515.09 × 1,515.09
  4. Step 4: Simplify right side
    799.31x = 2,295,509.07
  5. Step 5: Solve for x
    x = 2,295,509.07/799.31
  6. Step 6: Final answer
    x = 2,871.85

Related Problems

Find third proportional to 399.66 and 757.55
Half scale
Find third proportional to 1,598.63 and 3,030.19
Double scale
Find third proportional to 801 and 1,519
Similar ratio
Find third proportional to 1,198.97 and 2,272.64
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.90) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.