Finding the Fourth Proportional to 7,620.99, 11,430.74 and 2,354.60
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Solution
The fourth proportional to 7,620.99, 11,430.74 and 2,354.60 is: 3,531.66
Step by Step Solution
- Step 1: Write the proportion equation
7,620.99 : 11,430.74 = 2,354.60 : x - Step 2: Convert to fraction form
7,620.99/11,430.74 = 2,354.60/x - Step 3: Cross multiply
7,620.99x = 11,430.74 × 2,354.60 - Step 4: Simplify right side
7,620.99x = 26,914,751.48 - Step 5: Solve for x
x = 26,914,751.48/7,620.99 - Step 6: Final answer
x = 3,531.66
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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.