Finding the Fourth Proportional to 1,146, 1,717.84 and 658.08
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Solution
The fourth proportional to 1,146, 1,717.84 and 658.08 is: 986.45
Step by Step Solution
- Step 1: Write the proportion equation
1,146 : 1,717.84 = 658.08 : x - Step 2: Convert to fraction form
1,146/1,717.84 = 658.08/x - Step 3: Cross multiply
1,146x = 1,717.84 × 658.08 - Step 4: Simplify right side
1,146x = 1,130,476.15 - Step 5: Solve for x
x = 1,130,476.15/1,146 - Step 6: Final answer
x = 986.45
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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.