Finding the Fourth Proportional to 3,830,216.92, 5,285,696.87 and 2,087,889.64
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Solution
The fourth proportional to 3,830,216.92, 5,285,696.87 and 2,087,889.64 is: 2,881,286.35
Step by Step Solution
- Step 1: Write the proportion equation
3,830,216.92 : 5,285,696.87 = 2,087,889.64 : x - Step 2: Convert to fraction form
3,830,216.92/5,285,696.87 = 2,087,889.64/x - Step 3: Cross multiply
3,830,216.92x = 5,285,696.87 × 2,087,889.64 - Step 4: Simplify right side
3,830,216.92x = 11,035,951,735,053.43 - Step 5: Solve for x
x = 11,035,951,735,053.43/3,830,216.92 - Step 6: Final answer
x = 2,881,286.35
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.