Finding the Fourth Proportional to 2,752.58, 4,128.88 and 1,214.66
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Solution
The fourth proportional to 2,752.58, 4,128.88 and 1,214.66 is: 1,821.99
Step by Step Solution
- Step 1: Write the proportion equation
2,752.58 : 4,128.88 = 1,214.66 : x - Step 2: Convert to fraction form
2,752.58/4,128.88 = 1,214.66/x - Step 3: Cross multiply
2,752.58x = 4,128.88 × 1,214.66 - Step 4: Simplify right side
2,752.58x = 5,015,185.38 - Step 5: Solve for x
x = 5,015,185.38/2,752.58 - Step 6: Final answer
x = 1,821.99
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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.