Finding the Fourth Proportional to 849.18, 1,171.04 and 637.77
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Solution
The fourth proportional to 849.18, 1,171.04 and 637.77 is: 879.50
Step by Step Solution
- Step 1: Write the proportion equation
849.18 : 1,171.04 = 637.77 : x - Step 2: Convert to fraction form
849.18/1,171.04 = 637.77/x - Step 3: Cross multiply
849.18x = 1,171.04 × 637.77 - Step 4: Simplify right side
849.18x = 746,854.18 - Step 5: Solve for x
x = 746,854.18/849.18 - Step 6: Final answer
x = 879.50
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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.