Finding the Fourth Proportional to 5,918.11, 8,166.99 and 3,400.41
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Solution
The fourth proportional to 5,918.11, 8,166.99 and 3,400.41 is: 4,692.55
Step by Step Solution
- Step 1: Write the proportion equation
5,918.11 : 8,166.99 = 3,400.41 : x - Step 2: Convert to fraction form
5,918.11/8,166.99 = 3,400.41/x - Step 3: Cross multiply
5,918.11x = 8,166.99 × 3,400.41 - Step 4: Simplify right side
5,918.11x = 27,771,060.24 - Step 5: Solve for x
x = 27,771,060.24/5,918.11 - Step 6: Final answer
x = 4,692.55
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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.