Finding the Fourth Proportional to 7,727.70, 11,590.26 and 2,799.66
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Solution
The fourth proportional to 7,727.70, 11,590.26 and 2,799.66 is: 4,199.02
Step by Step Solution
- Step 1: Write the proportion equation
7,727.70 : 11,590.26 = 2,799.66 : x - Step 2: Convert to fraction form
7,727.70/11,590.26 = 2,799.66/x - Step 3: Cross multiply
7,727.70x = 11,590.26 × 2,799.66 - Step 4: Simplify right side
7,727.70x = 32,448,787.31 - Step 5: Solve for x
x = 32,448,787.31/7,727.70 - Step 6: Final answer
x = 4,199.02
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1.5x scale
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.