Finding the Fourth Proportional to 2,345.40, 3,516.79 and 959.70
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Solution
The fourth proportional to 2,345.40, 3,516.79 and 959.70 is: 1,439.02
Step by Step Solution
- Step 1: Write the proportion equation
2,345.40 : 3,516.79 = 959.70 : x - Step 2: Convert to fraction form
2,345.40/3,516.79 = 959.70/x - Step 3: Cross multiply
2,345.40x = 3,516.79 × 959.70 - Step 4: Simplify right side
2,345.40x = 3,375,074.55 - Step 5: Solve for x
x = 3,375,074.55/2,345.40 - Step 6: Final answer
x = 1,439.02
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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.