Finding the Fourth Proportional to 4,989.24, 6,886.26 and 2,893.68
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Solution
The fourth proportional to 4,989.24, 6,886.26 and 2,893.68 is: 3,993.92
Step by Step Solution
- Step 1: Write the proportion equation
4,989.24 : 6,886.26 = 2,893.68 : x - Step 2: Convert to fraction form
4,989.24/6,886.26 = 2,893.68/x - Step 3: Cross multiply
4,989.24x = 6,886.26 × 2,893.68 - Step 4: Simplify right side
4,989.24x = 19,926,632.84 - Step 5: Solve for x
x = 19,926,632.84/4,989.24 - Step 6: Final answer
x = 3,993.92
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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.