Finding the Fourth Proportional to 2,019.88, 3,029.87 and 559.09
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Solution
The fourth proportional to 2,019.88, 3,029.87 and 559.09 is: 838.65
Step by Step Solution
- Step 1: Write the proportion equation
2,019.88 : 3,029.87 = 559.09 : x - Step 2: Convert to fraction form
2,019.88/3,029.87 = 559.09/x - Step 3: Cross multiply
2,019.88x = 3,029.87 × 559.09 - Step 4: Simplify right side
2,019.88x = 1,693,970.02 - Step 5: Solve for x
x = 1,693,970.02/2,019.88 - Step 6: Final answer
x = 838.65
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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.