Finding the Fourth Proportional to 841.24, 1,160.94 and 491.92
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Solution
The fourth proportional to 841.24, 1,160.94 and 491.92 is: 678.87
Step by Step Solution
- Step 1: Write the proportion equation
841.24 : 1,160.94 = 491.92 : x - Step 2: Convert to fraction form
841.24/1,160.94 = 491.92/x - Step 3: Cross multiply
841.24x = 1,160.94 × 491.92 - Step 4: Simplify right side
841.24x = 571,089.60 - Step 5: Solve for x
x = 571,089.60/841.24 - Step 6: Final answer
x = 678.87
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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.