Finding the Fourth Proportional to 7,787.05, 11,677.06 and 2,239.14
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Solution
The fourth proportional to 7,787.05, 11,677.06 and 2,239.14 is: 3,357.70
Step by Step Solution
- Step 1: Write the proportion equation
7,787.05 : 11,677.06 = 2,239.14 : x - Step 2: Convert to fraction form
7,787.05/11,677.06 = 2,239.14/x - Step 3: Cross multiply
7,787.05x = 11,677.06 × 2,239.14 - Step 4: Simplify right side
7,787.05x = 26,146,572.13 - Step 5: Solve for x
x = 26,146,572.13/7,787.05 - Step 6: Final answer
x = 3,357.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.