Finding the Fourth Proportional to 2,320, 3,201.64 and 1,272
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Solution
The fourth proportional to 2,320, 3,201.64 and 1,272 is: 1,755.38
Step by Step Solution
- Step 1: Write the proportion equation
2,320 : 3,201.64 = 1,272 : x - Step 2: Convert to fraction form
2,320/3,201.64 = 1,272/x - Step 3: Cross multiply
2,320x = 3,201.64 × 1,272 - Step 4: Simplify right side
2,320x = 4,072,486.08 - Step 5: Solve for x
x = 4,072,486.08/2,320 - Step 6: Final answer
x = 1,755.38
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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.