Finding the Fourth Proportional to 2,480.31, 3,720.38 and 999.99
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Solution
The fourth proportional to 2,480.31, 3,720.38 and 999.99 is: 1,499.95
Step by Step Solution
- Step 1: Write the proportion equation
2,480.31 : 3,720.38 = 999.99 : x - Step 2: Convert to fraction form
2,480.31/3,720.38 = 999.99/x - Step 3: Cross multiply
2,480.31x = 3,720.38 × 999.99 - Step 4: Simplify right side
2,480.31x = 3,720,337.80 - Step 5: Solve for x
x = 3,720,337.80/2,480.31 - Step 6: Final answer
x = 1,499.95
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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.