Finding the Fourth Proportional to 3,848,085.84, 5,310,364.68 and 2,129,278.80
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Solution
The fourth proportional to 3,848,085.84, 5,310,364.68 and 2,129,278.80 is: 2,938,408.19
Step by Step Solution
- Step 1: Write the proportion equation
3,848,085.84 : 5,310,364.68 = 2,129,278.80 : x - Step 2: Convert to fraction form
3,848,085.84/5,310,364.68 = 2,129,278.80/x - Step 3: Cross multiply
3,848,085.84x = 5,310,364.68 × 2,129,278.80 - Step 4: Simplify right side
3,848,085.84x = 11,307,246,933,392.78 - Step 5: Solve for x
x = 11,307,246,933,392.78/3,848,085.84 - Step 6: Final answer
x = 2,938,408.19
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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.