Finding the Fourth Proportional to 2,461.21, 3,691.01 and 817.31
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Solution
The fourth proportional to 2,461.21, 3,691.01 and 817.31 is: 1,225.70
Step by Step Solution
- Step 1: Write the proportion equation
2,461.21 : 3,691.01 = 817.31 : x - Step 2: Convert to fraction form
2,461.21/3,691.01 = 817.31/x - Step 3: Cross multiply
2,461.21x = 3,691.01 × 817.31 - Step 4: Simplify right side
2,461.21x = 3,016,712.19 - Step 5: Solve for x
x = 3,016,712.19/2,461.21 - Step 6: Final answer
x = 1,225.70
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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.