Home / 942.05-1,239.05

Finding the Third Proportional to 942.05 and 1,239.05

Calculator

Solution

The third proportional to 942.05 and 1,239.05 is: 1,629.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    942.05 : 1,239.05 = 1,239.05 : x
  2. Step 2: Convert to fraction form
    942.05/1,239.05 = 1,239.05/x
  3. Step 3: Cross multiply
    942.05x = 1,239.05 × 1,239.05
  4. Step 4: Simplify right side
    942.05x = 1,535,237.16
  5. Step 5: Solve for x
    x = 1,535,237.16/942.05
  6. Step 6: Final answer
    x = 1,629.68

Related Problems

Find third proportional to 471.02 and 619.52
Half scale
Find third proportional to 1,884.09 and 2,478.09
Double scale
Find third proportional to 944 and 1,242
Similar ratio
Find third proportional to 1,413.07 and 1,858.57
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.