Finding the Fourth Proportional to 7,750.92, 11,628.80 and 2,560.44
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Solution
The fourth proportional to 7,750.92, 11,628.80 and 2,560.44 is: 3,841.46
Step by Step Solution
- Step 1: Write the proportion equation
7,750.92 : 11,628.80 = 2,560.44 : x - Step 2: Convert to fraction form
7,750.92/11,628.80 = 2,560.44/x - Step 3: Cross multiply
7,750.92x = 11,628.80 × 2,560.44 - Step 4: Simplify right side
7,750.92x = 29,774,844.67 - Step 5: Solve for x
x = 29,774,844.67/7,750.92 - Step 6: Final answer
x = 3,841.46
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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.