Finding the Fourth Proportional to 3,946,537.28, 5,446,238.40 and 2,135,701.28
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Solution
The fourth proportional to 3,946,537.28, 5,446,238.40 and 2,135,701.28 is: 2,947,276.94
Step by Step Solution
- Step 1: Write the proportion equation
3,946,537.28 : 5,446,238.40 = 2,135,701.28 : x - Step 2: Convert to fraction form
3,946,537.28/5,446,238.40 = 2,135,701.28/x - Step 3: Cross multiply
3,946,537.28x = 5,446,238.40 × 2,135,701.28 - Step 4: Simplify right side
3,946,537.28x = 11,631,538,322,065.15 - Step 5: Solve for x
x = 11,631,538,322,065.15/3,946,537.28 - Step 6: Final answer
x = 2,947,276.94
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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.