Finding the Fourth Proportional to 4,918.14, 6,786.99 and 2,822.28
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Solution
The fourth proportional to 4,918.14, 6,786.99 and 2,822.28 is: 3,894.72
Step by Step Solution
- Step 1: Write the proportion equation
4,918.14 : 6,786.99 = 2,822.28 : x - Step 2: Convert to fraction form
4,918.14/6,786.99 = 2,822.28/x - Step 3: Cross multiply
4,918.14x = 6,786.99 × 2,822.28 - Step 4: Simplify right side
4,918.14x = 19,154,786.14 - Step 5: Solve for x
x = 19,154,786.14/4,918.14 - Step 6: Final answer
x = 3,894.72
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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.