Finding the Fourth Proportional to 1,145.97, 1,716.89 and 734.09
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Solution
The fourth proportional to 1,145.97, 1,716.89 and 734.09 is: 1,099.80
Step by Step Solution
- Step 1: Write the proportion equation
1,145.97 : 1,716.89 = 734.09 : x - Step 2: Convert to fraction form
1,145.97/1,716.89 = 734.09/x - Step 3: Cross multiply
1,145.97x = 1,716.89 × 734.09 - Step 4: Simplify right side
1,145.97x = 1,260,339.53 - Step 5: Solve for x
x = 1,260,339.53/1,145.97 - Step 6: Final answer
x = 1,099.80
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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.