Finding the Fourth Proportional to 2,861.92, 4,292.52 and 782.08
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Solution
The fourth proportional to 2,861.92, 4,292.52 and 782.08 is: 1,173.02
Step by Step Solution
- Step 1: Write the proportion equation
2,861.92 : 4,292.52 = 782.08 : x - Step 2: Convert to fraction form
2,861.92/4,292.52 = 782.08/x - Step 3: Cross multiply
2,861.92x = 4,292.52 × 782.08 - Step 4: Simplify right side
2,861.92x = 3,357,094.04 - Step 5: Solve for x
x = 3,357,094.04/2,861.92 - Step 6: Final answer
x = 1,173.02
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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.