Finding the Fourth Proportional to 4,515.30, 6,772.69 and 2,678.09
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Solution
The fourth proportional to 4,515.30, 6,772.69 and 2,678.09 is: 4,016.99
Step by Step Solution
- Step 1: Write the proportion equation
4,515.30 : 6,772.69 = 2,678.09 : x - Step 2: Convert to fraction form
4,515.30/6,772.69 = 2,678.09/x - Step 3: Cross multiply
4,515.30x = 6,772.69 × 2,678.09 - Step 4: Simplify right side
4,515.30x = 18,137,903.45 - Step 5: Solve for x
x = 18,137,903.45/4,515.30 - Step 6: Final answer
x = 4,016.99
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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.