Finding the Fourth Proportional to 2,605.25, 3,905.94 and 961.80
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Solution
The fourth proportional to 2,605.25, 3,905.94 and 961.80 is: 1,441.99
Step by Step Solution
- Step 1: Write the proportion equation
2,605.25 : 3,905.94 = 961.80 : x - Step 2: Convert to fraction form
2,605.25/3,905.94 = 961.80/x - Step 3: Cross multiply
2,605.25x = 3,905.94 × 961.80 - Step 4: Simplify right side
2,605.25x = 3,756,733.09 - Step 5: Solve for x
x = 3,756,733.09/2,605.25 - Step 6: Final answer
x = 1,441.99
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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.