Finding the Fourth Proportional to 2,145.08, 3,217.57 and 585.05
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Solution
The fourth proportional to 2,145.08, 3,217.57 and 585.05 is: 877.56
Step by Step Solution
- Step 1: Write the proportion equation
2,145.08 : 3,217.57 = 585.05 : x - Step 2: Convert to fraction form
2,145.08/3,217.57 = 585.05/x - Step 3: Cross multiply
2,145.08x = 3,217.57 × 585.05 - Step 4: Simplify right side
2,145.08x = 1,882,436.40 - Step 5: Solve for x
x = 1,882,436.40/2,145.08 - Step 6: Final answer
x = 877.56
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1.5x scale
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.