Finding the Fourth Proportional to 3,785,081.68, 5,222,714.11 and 2,153,393.79
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Solution
The fourth proportional to 3,785,081.68, 5,222,714.11 and 2,153,393.79 is: 2,971,285.98
Step by Step Solution
- Step 1: Write the proportion equation
3,785,081.68 : 5,222,714.11 = 2,153,393.79 : x - Step 2: Convert to fraction form
3,785,081.68/5,222,714.11 = 2,153,393.79/x - Step 3: Cross multiply
3,785,081.68x = 5,222,714.11 × 2,153,393.79 - Step 4: Simplify right side
3,785,081.68x = 11,246,560,131,419.38 - Step 5: Solve for x
x = 11,246,560,131,419.38/3,785,081.68 - Step 6: Final answer
x = 2,971,285.98
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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.