Finding the Fourth Proportional to 7,798.87, 11,698.98 and 2,252.80
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Solution
The fourth proportional to 7,798.87, 11,698.98 and 2,252.80 is: 3,379.39
Step by Step Solution
- Step 1: Write the proportion equation
7,798.87 : 11,698.98 = 2,252.80 : x - Step 2: Convert to fraction form
7,798.87/11,698.98 = 2,252.80/x - Step 3: Cross multiply
7,798.87x = 11,698.98 × 2,252.80 - Step 4: Simplify right side
7,798.87x = 26,355,462.14 - Step 5: Solve for x
x = 26,355,462.14/7,798.87 - Step 6: Final answer
x = 3,379.39
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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.