Finding the Fourth Proportional to 3,825,320.79, 5,278,753.20 and 2,106,120.09
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Solution
The fourth proportional to 3,825,320.79, 5,278,753.20 and 2,106,120.09 is: 2,906,341.40
Step by Step Solution
- Step 1: Write the proportion equation
3,825,320.79 : 5,278,753.20 = 2,106,120.09 : x - Step 2: Convert to fraction form
3,825,320.79/5,278,753.20 = 2,106,120.09/x - Step 3: Cross multiply
3,825,320.79x = 5,278,753.20 × 2,106,120.09 - Step 4: Simplify right side
3,825,320.79x = 11,117,688,164,671.79 - Step 5: Solve for x
x = 11,117,688,164,671.79/3,825,320.79 - Step 6: Final answer
x = 2,906,341.40
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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.