Finding the Fourth Proportional to 1,481.68, 2,043.80 and 958.08
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Solution
The fourth proportional to 1,481.68, 2,043.80 and 958.08 is: 1,321.56
Step by Step Solution
- Step 1: Write the proportion equation
1,481.68 : 2,043.80 = 958.08 : x - Step 2: Convert to fraction form
1,481.68/2,043.80 = 958.08/x - Step 3: Cross multiply
1,481.68x = 2,043.80 × 958.08 - Step 4: Simplify right side
1,481.68x = 1,958,123.90 - Step 5: Solve for x
x = 1,958,123.90/1,481.68 - Step 6: Final answer
x = 1,321.56
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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.