Finding the Fourth Proportional to 984.16, 1,357.84 and 570.08
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Solution
The fourth proportional to 984.16, 1,357.84 and 570.08 is: 786.54
Step by Step Solution
- Step 1: Write the proportion equation
984.16 : 1,357.84 = 570.08 : x - Step 2: Convert to fraction form
984.16/1,357.84 = 570.08/x - Step 3: Cross multiply
984.16x = 1,357.84 × 570.08 - Step 4: Simplify right side
984.16x = 774,077.43 - Step 5: Solve for x
x = 774,077.43/984.16 - Step 6: Final answer
x = 786.54
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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.