Finding the Fourth Proportional to 939.19, 1,296.15 and 540.99
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Solution
The fourth proportional to 939.19, 1,296.15 and 540.99 is: 746.61
Step by Step Solution
- Step 1: Write the proportion equation
939.19 : 1,296.15 = 540.99 : x - Step 2: Convert to fraction form
939.19/1,296.15 = 540.99/x - Step 3: Cross multiply
939.19x = 1,296.15 × 540.99 - Step 4: Simplify right side
939.19x = 701,204.19 - Step 5: Solve for x
x = 701,204.19/939.19 - Step 6: Final answer
x = 746.61
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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.