Finding the Fourth Proportional to 2,125.36, 3,187.68 and 586
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Solution
The fourth proportional to 2,125.36, 3,187.68 and 586 is: 878.90
Step by Step Solution
- Step 1: Write the proportion equation
2,125.36 : 3,187.68 = 586 : x - Step 2: Convert to fraction form
2,125.36/3,187.68 = 586/x - Step 3: Cross multiply
2,125.36x = 3,187.68 × 586 - Step 4: Simplify right side
2,125.36x = 1,867,980.48 - Step 5: Solve for x
x = 1,867,980.48/2,125.36 - Step 6: Final answer
x = 878.90
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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.