Finding the Fourth Proportional to 2,873,105.21, 3,965,031.84 and 1,583,942.54
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Solution
The fourth proportional to 2,873,105.21, 3,965,031.84 and 1,583,942.54 is: 2,185,921.55
Step by Step Solution
- Step 1: Write the proportion equation
2,873,105.21 : 3,965,031.84 = 1,583,942.54 : x - Step 2: Convert to fraction form
2,873,105.21/3,965,031.84 = 1,583,942.54/x - Step 3: Cross multiply
2,873,105.21x = 3,965,031.84 × 1,583,942.54 - Step 4: Simplify right side
2,873,105.21x = 6,280,382,584,005.31 - Step 5: Solve for x
x = 6,280,382,584,005.31/2,873,105.21 - Step 6: Final answer
x = 2,185,921.55
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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.