Finding the Fourth Proportional to 1,630.38, 2,445.72 and 655.95
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Solution
The fourth proportional to 1,630.38, 2,445.72 and 655.95 is: 983.99
Step by Step Solution
- Step 1: Write the proportion equation
1,630.38 : 2,445.72 = 655.95 : x - Step 2: Convert to fraction form
1,630.38/2,445.72 = 655.95/x - Step 3: Cross multiply
1,630.38x = 2,445.72 × 655.95 - Step 4: Simplify right side
1,630.38x = 1,604,270.03 - Step 5: Solve for x
x = 1,604,270.03/1,630.38 - Step 6: Final answer
x = 983.99
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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.