Finding the Fourth Proportional to 1,815.42, 2,722.58 and 582.78
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Solution
The fourth proportional to 1,815.42, 2,722.58 and 582.78 is: 873.99
Step by Step Solution
- Step 1: Write the proportion equation
1,815.42 : 2,722.58 = 582.78 : x - Step 2: Convert to fraction form
1,815.42/2,722.58 = 582.78/x - Step 3: Cross multiply
1,815.42x = 2,722.58 × 582.78 - Step 4: Simplify right side
1,815.42x = 1,586,665.17 - Step 5: Solve for x
x = 1,586,665.17/1,815.42 - Step 6: Final answer
x = 873.99
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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.