Finding the Fourth Proportional to 1,817.24, 2,725.56 and 518.72
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Solution
The fourth proportional to 1,817.24, 2,725.56 and 518.72 is: 777.99
Step by Step Solution
- Step 1: Write the proportion equation
1,817.24 : 2,725.56 = 518.72 : x - Step 2: Convert to fraction form
1,817.24/2,725.56 = 518.72/x - Step 3: Cross multiply
1,817.24x = 2,725.56 × 518.72 - Step 4: Simplify right side
1,817.24x = 1,413,802.48 - Step 5: Solve for x
x = 1,413,802.48/1,817.24 - Step 6: Final answer
x = 777.99
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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.