Finding the Fourth Proportional to 3,918.93, 5,875.74 and 2,068.08
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Solution
The fourth proportional to 3,918.93, 5,875.74 and 2,068.08 is: 3,100.72
Step by Step Solution
- Step 1: Write the proportion equation
3,918.93 : 5,875.74 = 2,068.08 : x - Step 2: Convert to fraction form
3,918.93/5,875.74 = 2,068.08/x - Step 3: Cross multiply
3,918.93x = 5,875.74 × 2,068.08 - Step 4: Simplify right side
3,918.93x = 12,151,500.38 - Step 5: Solve for x
x = 12,151,500.38/3,918.93 - Step 6: Final answer
x = 3,100.72
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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.