Finding the Fourth Proportional to 3,997,929.12, 5,517,272.58 and 2,187,093.12
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Solution
The fourth proportional to 3,997,929.12, 5,517,272.58 and 2,187,093.12 is: 3,018,259.84
Step by Step Solution
- Step 1: Write the proportion equation
3,997,929.12 : 5,517,272.58 = 2,187,093.12 : x - Step 2: Convert to fraction form
3,997,929.12/5,517,272.58 = 2,187,093.12/x - Step 3: Cross multiply
3,997,929.12x = 5,517,272.58 × 2,187,093.12 - Step 4: Simplify right side
3,997,929.12x = 12,066,788,900,882.65 - Step 5: Solve for x
x = 12,066,788,900,882.65/3,997,929.12 - Step 6: Final answer
x = 3,018,259.84
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1.5x scale
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.