Finding the Fourth Proportional to 2,370.75, 3,554.61 and 985.05
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Solution
The fourth proportional to 2,370.75, 3,554.61 and 985.05 is: 1,476.95
Step by Step Solution
- Step 1: Write the proportion equation
2,370.75 : 3,554.61 = 985.05 : x - Step 2: Convert to fraction form
2,370.75/3,554.61 = 985.05/x - Step 3: Cross multiply
2,370.75x = 3,554.61 × 985.05 - Step 4: Simplify right side
2,370.75x = 3,501,468.58 - Step 5: Solve for x
x = 3,501,468.58/2,370.75 - Step 6: Final answer
x = 1,476.95
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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.