Finding the Fourth Proportional to 5,112, 7,054.88 and 2,904
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Solution
The fourth proportional to 5,112, 7,054.88 and 2,904 is: 4,007.70
Step by Step Solution
- Step 1: Write the proportion equation
5,112 : 7,054.88 = 2,904 : x - Step 2: Convert to fraction form
5,112/7,054.88 = 2,904/x - Step 3: Cross multiply
5,112x = 7,054.88 × 2,904 - Step 4: Simplify right side
5,112x = 20,487,371.52 - Step 5: Solve for x
x = 20,487,371.52/5,112 - Step 6: Final answer
x = 4,007.70
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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.