Finding the Fourth Proportional to 2,926.84, 4,391.02 and 847.02
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Solution
The fourth proportional to 2,926.84, 4,391.02 and 847.02 is: 1,270.75
Step by Step Solution
- Step 1: Write the proportion equation
2,926.84 : 4,391.02 = 847.02 : x - Step 2: Convert to fraction form
2,926.84/4,391.02 = 847.02/x - Step 3: Cross multiply
2,926.84x = 4,391.02 × 847.02 - Step 4: Simplify right side
2,926.84x = 3,719,281.76 - Step 5: Solve for x
x = 3,719,281.76/2,926.84 - Step 6: Final answer
x = 1,270.75
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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.