Finding the Fourth Proportional to 2,577.12, 3,864 and 1,116
Calculator
Solution
The fourth proportional to 2,577.12, 3,864 and 1,116 is: 1,673.27
Step by Step Solution
- Step 1: Write the proportion equation
2,577.12 : 3,864 = 1,116 : x - Step 2: Convert to fraction form
2,577.12/3,864 = 1,116/x - Step 3: Cross multiply
2,577.12x = 3,864 × 1,116 - Step 4: Simplify right side
2,577.12x = 4,312,224 - Step 5: Solve for x
x = 4,312,224/2,577.12 - Step 6: Final answer
x = 1,673.27
Related Problems
Find fourth proportional to 1,288.56, 1,932 and 558
Half scale
Find fourth proportional to 5,154.24, 7,728 and 2,232
Double scale
Find fourth proportional to 2,578.12, 3,865.50 and 1,117
Similar ratio
Find fourth proportional to 3,865.68, 5,796 and 1,674
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.