Finding the Fourth Proportional to 2,580.45, 3,870.66 and 936.99
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Solution
The fourth proportional to 2,580.45, 3,870.66 and 936.99 is: 1,405.48
Step by Step Solution
- Step 1: Write the proportion equation
2,580.45 : 3,870.66 = 936.99 : x - Step 2: Convert to fraction form
2,580.45/3,870.66 = 936.99/x - Step 3: Cross multiply
2,580.45x = 3,870.66 × 936.99 - Step 4: Simplify right side
2,580.45x = 3,626,769.71 - Step 5: Solve for x
x = 3,626,769.71/2,580.45 - Step 6: Final answer
x = 1,405.48
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Similar ratio
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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.