Finding the Fourth Proportional to 1,680.09, 2,318.41 and 934.02
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Solution
The fourth proportional to 1,680.09, 2,318.41 and 934.02 is: 1,288.88
Step by Step Solution
- Step 1: Write the proportion equation
1,680.09 : 2,318.41 = 934.02 : x - Step 2: Convert to fraction form
1,680.09/2,318.41 = 934.02/x - Step 3: Cross multiply
1,680.09x = 2,318.41 × 934.02 - Step 4: Simplify right side
1,680.09x = 2,165,441.31 - Step 5: Solve for x
x = 2,165,441.31/1,680.09 - Step 6: Final answer
x = 1,288.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.