Finding the Fourth Proportional to 4,128.28, 6,194 and 2,486
Calculator
Solution
The fourth proportional to 4,128.28, 6,194 and 2,486 is: 3,729.95
Step by Step Solution
- Step 1: Write the proportion equation
4,128.28 : 6,194 = 2,486 : x - Step 2: Convert to fraction form
4,128.28/6,194 = 2,486/x - Step 3: Cross multiply
4,128.28x = 6,194 × 2,486 - Step 4: Simplify right side
4,128.28x = 15,398,284 - Step 5: Solve for x
x = 15,398,284/4,128.28 - Step 6: Final answer
x = 3,729.95
Related Problems
Find fourth proportional to 2,064.14, 3,097 and 1,243
Half scale
Find fourth proportional to 8,256.56, 12,388 and 4,972
Double scale
Find fourth proportional to 4,129.28, 6,195.50 and 2,487
Similar ratio
Find fourth proportional to 6,192.42, 9,291 and 3,729
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.