Finding the Fourth Proportional to 2,891,384.22, 3,990,133.68 and 1,602,246.15
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Solution
The fourth proportional to 2,891,384.22, 3,990,133.68 and 1,602,246.15 is: 2,211,112.69
Step by Step Solution
- Step 1: Write the proportion equation
2,891,384.22 : 3,990,133.68 = 1,602,246.15 : x - Step 2: Convert to fraction form
2,891,384.22/3,990,133.68 = 1,602,246.15/x - Step 3: Cross multiply
2,891,384.22x = 3,990,133.68 × 1,602,246.15 - Step 4: Simplify right side
2,891,384.22x = 6,393,176,326,765.33 - Step 5: Solve for x
x = 6,393,176,326,765.33/2,891,384.22 - Step 6: Final answer
x = 2,211,112.69
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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.