Finding the Fourth Proportional to 992.19, 1,369.19 and 550.08
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Solution
The fourth proportional to 992.19, 1,369.19 and 550.08 is: 759.09
Step by Step Solution
- Step 1: Write the proportion equation
992.19 : 1,369.19 = 550.08 : x - Step 2: Convert to fraction form
992.19/1,369.19 = 550.08/x - Step 3: Cross multiply
992.19x = 1,369.19 × 550.08 - Step 4: Simplify right side
992.19x = 753,161.28 - Step 5: Solve for x
x = 753,161.28/992.19 - Step 6: Final answer
x = 759.09
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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.