Finding the Fourth Proportional to 5,139, 7,092 and 3,276
Calculator
Solution
The fourth proportional to 5,139, 7,092 and 3,276 is: 4,520.99
Step by Step Solution
- Step 1: Write the proportion equation
5,139 : 7,092 = 3,276 : x - Step 2: Convert to fraction form
5,139/7,092 = 3,276/x - Step 3: Cross multiply
5,139x = 7,092 × 3,276 - Step 4: Simplify right side
5,139x = 23,233,392 - Step 5: Solve for x
x = 23,233,392/5,139 - Step 6: Final answer
x = 4,520.99
Related Problems
Find fourth proportional to 2,569.50, 3,546 and 1,638
Half scale
Find fourth proportional to 10,278, 14,184 and 6,552
Double scale
Find fourth proportional to 5,140, 7,093.38 and 3,277
Similar ratio
Find fourth proportional to 7,708.50, 10,638 and 4,914
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.