Finding the Fourth Proportional to 5,815.56, 8,025.39 and 3,162.99
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Solution
The fourth proportional to 5,815.56, 8,025.39 and 3,162.99 is: 4,364.88
Step by Step Solution
- Step 1: Write the proportion equation
5,815.56 : 8,025.39 = 3,162.99 : x - Step 2: Convert to fraction form
5,815.56/8,025.39 = 3,162.99/x - Step 3: Cross multiply
5,815.56x = 8,025.39 × 3,162.99 - Step 4: Simplify right side
5,815.56x = 25,384,228.32 - Step 5: Solve for x
x = 25,384,228.32/5,815.56 - Step 6: Final answer
x = 4,364.88
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1.5x scale
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.