Home / 745.21-1,618.56

Finding the Third Proportional to 745.21 and 1,618.56

Calculator

Solution

The third proportional to 745.21 and 1,618.56 is: 3,515.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    745.21 : 1,618.56 = 1,618.56 : x
  2. Step 2: Convert to fraction form
    745.21/1,618.56 = 1,618.56/x
  3. Step 3: Cross multiply
    745.21x = 1,618.56 × 1,618.56
  4. Step 4: Simplify right side
    745.21x = 2,619,731.92
  5. Step 5: Solve for x
    x = 2,619,731.92/745.21
  6. Step 6: Final answer
    x = 3,515.44

Related Problems

Find third proportional to 372.60 and 809.28
Half scale
Find third proportional to 1,490.41 and 3,237.12
Double scale
Find third proportional to 747 and 1,623
Similar ratio
Find third proportional to 1,117.81 and 2,427.84
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.