Finding the Fourth Proportional to 2,085.96, 3,128.92 and 625.08
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Solution
The fourth proportional to 2,085.96, 3,128.92 and 625.08 is: 937.61
Step by Step Solution
- Step 1: Write the proportion equation
2,085.96 : 3,128.92 = 625.08 : x - Step 2: Convert to fraction form
2,085.96/3,128.92 = 625.08/x - Step 3: Cross multiply
2,085.96x = 3,128.92 × 625.08 - Step 4: Simplify right side
2,085.96x = 1,955,825.31 - Step 5: Solve for x
x = 1,955,825.31/2,085.96 - Step 6: Final answer
x = 937.61
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1.5x scale
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.