Finding the Fourth Proportional to 1,048.51, 1,572.71 and 308.09
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Solution
The fourth proportional to 1,048.51, 1,572.71 and 308.09 is: 462.12
Step by Step Solution
- Step 1: Write the proportion equation
1,048.51 : 1,572.71 = 308.09 : x - Step 2: Convert to fraction form
1,048.51/1,572.71 = 308.09/x - Step 3: Cross multiply
1,048.51x = 1,572.71 × 308.09 - Step 4: Simplify right side
1,048.51x = 484,536.22 - Step 5: Solve for x
x = 484,536.22/1,048.51 - Step 6: Final answer
x = 462.12
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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.