Finding the Fourth Proportional to 2,894.88, 4,341.86 and 815.08
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Solution
The fourth proportional to 2,894.88, 4,341.86 and 815.08 is: 1,222.49
Step by Step Solution
- Step 1: Write the proportion equation
2,894.88 : 4,341.86 = 815.08 : x - Step 2: Convert to fraction form
2,894.88/4,341.86 = 815.08/x - Step 3: Cross multiply
2,894.88x = 4,341.86 × 815.08 - Step 4: Simplify right side
2,894.88x = 3,538,963.25 - Step 5: Solve for x
x = 3,538,963.25/2,894.88 - Step 6: Final answer
x = 1,222.49
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1.5x scale
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.