Finding the Fourth Proportional to 1,727.89, 2,591.57 and 631.99
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Solution
The fourth proportional to 1,727.89, 2,591.57 and 631.99 is: 947.89
Step by Step Solution
- Step 1: Write the proportion equation
1,727.89 : 2,591.57 = 631.99 : x - Step 2: Convert to fraction form
1,727.89/2,591.57 = 631.99/x - Step 3: Cross multiply
1,727.89x = 2,591.57 × 631.99 - Step 4: Simplify right side
1,727.89x = 1,637,846.32 - Step 5: Solve for x
x = 1,637,846.32/1,727.89 - Step 6: Final answer
x = 947.89
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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.