Finding the Fourth Proportional to 2,541.12, 3,811.52 and 980.48
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Solution
The fourth proportional to 2,541.12, 3,811.52 and 980.48 is: 1,470.66
Step by Step Solution
- Step 1: Write the proportion equation
2,541.12 : 3,811.52 = 980.48 : x - Step 2: Convert to fraction form
2,541.12/3,811.52 = 980.48/x - Step 3: Cross multiply
2,541.12x = 3,811.52 × 980.48 - Step 4: Simplify right side
2,541.12x = 3,737,119.13 - Step 5: Solve for x
x = 3,737,119.13/2,541.12 - Step 6: Final answer
x = 1,470.66
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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.