Finding the Fourth Proportional to 748.22, 1,121.93 and 336.99
Calculator
Solution
The fourth proportional to 748.22, 1,121.93 and 336.99 is: 505.31
Step by Step Solution
- Step 1: Write the proportion equation
748.22 : 1,121.93 = 336.99 : x - Step 2: Convert to fraction form
748.22/1,121.93 = 336.99/x - Step 3: Cross multiply
748.22x = 1,121.93 × 336.99 - Step 4: Simplify right side
748.22x = 378,077.51 - Step 5: Solve for x
x = 378,077.51/748.22 - Step 6: Final answer
x = 505.31
Related Problems
Find fourth proportional to 374.11, 560.96 and 168.50
Half scale
Find fourth proportional to 1,496.43, 2,243.85 and 673.98
Double scale
Find fourth proportional to 749.22, 1,123.42 and 337.99
Similar ratio
Find fourth proportional to 1,122.32, 1,682.89 and 505.49
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.