Finding the Fourth Proportional to 1,458.06, 2,186.72 and 418.07
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Solution
The fourth proportional to 1,458.06, 2,186.72 and 418.07 is: 626.99
Step by Step Solution
- Step 1: Write the proportion equation
1,458.06 : 2,186.72 = 418.07 : x - Step 2: Convert to fraction form
1,458.06/2,186.72 = 418.07/x - Step 3: Cross multiply
1,458.06x = 2,186.72 × 418.07 - Step 4: Simplify right side
1,458.06x = 914,189.01 - Step 5: Solve for x
x = 914,189.01/1,458.06 - Step 6: Final answer
x = 626.99
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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.