Finding the Fourth Proportional to 2,393.72, 3,590.17 and 661.94
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Solution
The fourth proportional to 2,393.72, 3,590.17 and 661.94 is: 992.80
Step by Step Solution
- Step 1: Write the proportion equation
2,393.72 : 3,590.17 = 661.94 : x - Step 2: Convert to fraction form
2,393.72/3,590.17 = 661.94/x - Step 3: Cross multiply
2,393.72x = 3,590.17 × 661.94 - Step 4: Simplify right side
2,393.72x = 2,376,477.13 - Step 5: Solve for x
x = 2,376,477.13/2,393.72 - Step 6: Final answer
x = 992.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.