Finding the Fourth Proportional to 2,508.87, 3,762.99 and 660
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Solution
The fourth proportional to 2,508.87, 3,762.99 and 660 is: 989.92
Step by Step Solution
- Step 1: Write the proportion equation
2,508.87 : 3,762.99 = 660 : x - Step 2: Convert to fraction form
2,508.87/3,762.99 = 660/x - Step 3: Cross multiply
2,508.87x = 3,762.99 × 660 - Step 4: Simplify right side
2,508.87x = 2,483,573.40 - Step 5: Solve for x
x = 2,483,573.40/2,508.87 - Step 6: Final answer
x = 989.92
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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.