Finding the Fourth Proportional to 4,919.88, 7,372.91 and 2,692.99
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Solution
The fourth proportional to 4,919.88, 7,372.91 and 2,692.99 is: 4,035.70
Step by Step Solution
- Step 1: Write the proportion equation
4,919.88 : 7,372.91 = 2,692.99 : x - Step 2: Convert to fraction form
4,919.88/7,372.91 = 2,692.99/x - Step 3: Cross multiply
4,919.88x = 7,372.91 × 2,692.99 - Step 4: Simplify right side
4,919.88x = 19,855,161.20 - Step 5: Solve for x
x = 19,855,161.20/4,919.88 - Step 6: Final answer
x = 4,035.70
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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.