Finding the Fourth Proportional to 7,750.25, 11,625.39 and 3,587.99
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Solution
The fourth proportional to 7,750.25, 11,625.39 and 3,587.99 is: 5,381.99
Step by Step Solution
- Step 1: Write the proportion equation
7,750.25 : 11,625.39 = 3,587.99 : x - Step 2: Convert to fraction form
7,750.25/11,625.39 = 3,587.99/x - Step 3: Cross multiply
7,750.25x = 11,625.39 × 3,587.99 - Step 4: Simplify right side
7,750.25x = 41,711,765.13 - Step 5: Solve for x
x = 41,711,765.13/7,750.25 - Step 6: Final answer
x = 5,381.99
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1.5x scale
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.