Finding the Fourth Proportional to 3,810,722.18, 5,258,775.92 and 2,091,871.94
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Solution
The fourth proportional to 3,810,722.18, 5,258,775.92 and 2,091,871.94 is: 2,886,771.92
Step by Step Solution
- Step 1: Write the proportion equation
3,810,722.18 : 5,258,775.92 = 2,091,871.94 : x - Step 2: Convert to fraction form
3,810,722.18/5,258,775.92 = 2,091,871.94/x - Step 3: Cross multiply
3,810,722.18x = 5,258,775.92 × 2,091,871.94 - Step 4: Simplify right side
3,810,722.18x = 11,000,685,785,795.68 - Step 5: Solve for x
x = 11,000,685,785,795.68/3,810,722.18 - Step 6: Final answer
x = 2,886,771.92
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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.