Finding the Fourth Proportional to 1,174.16, 1,620.19 and 670.09
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Solution
The fourth proportional to 1,174.16, 1,620.19 and 670.09 is: 924.63
Step by Step Solution
- Step 1: Write the proportion equation
1,174.16 : 1,620.19 = 670.09 : x - Step 2: Convert to fraction form
1,174.16/1,620.19 = 670.09/x - Step 3: Cross multiply
1,174.16x = 1,620.19 × 670.09 - Step 4: Simplify right side
1,174.16x = 1,085,667.39 - Step 5: Solve for x
x = 1,085,667.39/1,174.16 - Step 6: Final answer
x = 924.63
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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.