Finding the Fourth Proportional to 2,388.81, 3,582.60 and 745.05
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Solution
The fourth proportional to 2,388.81, 3,582.60 and 745.05 is: 1,117.38
Step by Step Solution
- Step 1: Write the proportion equation
2,388.81 : 3,582.60 = 745.05 : x - Step 2: Convert to fraction form
2,388.81/3,582.60 = 745.05/x - Step 3: Cross multiply
2,388.81x = 3,582.60 × 745.05 - Step 4: Simplify right side
2,388.81x = 2,669,216.13 - Step 5: Solve for x
x = 2,669,216.13/2,388.81 - Step 6: Final answer
x = 1,117.38
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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.