Finding the Fourth Proportional to 3,891,916.84, 5,371,177.36 and 2,173,369.52
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Solution
The fourth proportional to 3,891,916.84, 5,371,177.36 and 2,173,369.52 is: 2,999,435.40
Step by Step Solution
- Step 1: Write the proportion equation
3,891,916.84 : 5,371,177.36 = 2,173,369.52 : x - Step 2: Convert to fraction form
3,891,916.84/5,371,177.36 = 2,173,369.52/x - Step 3: Cross multiply
3,891,916.84x = 5,371,177.36 × 2,173,369.52 - Step 4: Simplify right side
3,891,916.84x = 11,673,553,160,738.07 - Step 5: Solve for x
x = 11,673,553,160,738.07/3,891,916.84 - Step 6: Final answer
x = 2,999,435.40
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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.