Finding the Fourth Proportional to 3,876,249.21, 5,349,129.51 and 2,133,904.43
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Solution
The fourth proportional to 3,876,249.21, 5,349,129.51 and 2,133,904.43 is: 2,944,736.15
Step by Step Solution
- Step 1: Write the proportion equation
3,876,249.21 : 5,349,129.51 = 2,133,904.43 : x - Step 2: Convert to fraction form
3,876,249.21/5,349,129.51 = 2,133,904.43/x - Step 3: Cross multiply
3,876,249.21x = 5,349,129.51 × 2,133,904.43 - Step 4: Simplify right side
3,876,249.21x = 11,414,531,173,406.09 - Step 5: Solve for x
x = 11,414,531,173,406.09/3,876,249.21 - Step 6: Final answer
x = 2,944,736.15
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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.