Finding the Fourth Proportional to 4,519.53, 6,779.34 and 2,178.99
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Solution
The fourth proportional to 4,519.53, 6,779.34 and 2,178.99 is: 3,268.51
Step by Step Solution
- Step 1: Write the proportion equation
4,519.53 : 6,779.34 = 2,178.99 : x - Step 2: Convert to fraction form
4,519.53/6,779.34 = 2,178.99/x - Step 3: Cross multiply
4,519.53x = 6,779.34 × 2,178.99 - Step 4: Simplify right side
4,519.53x = 14,772,114.07 - Step 5: Solve for x
x = 14,772,114.07/4,519.53 - Step 6: Final answer
x = 3,268.51
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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.