Finding the Fourth Proportional to 1,158, 1,598.04 and 634.05
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Solution
The fourth proportional to 1,158, 1,598.04 and 634.05 is: 874.99
Step by Step Solution
- Step 1: Write the proportion equation
1,158 : 1,598.04 = 634.05 : x - Step 2: Convert to fraction form
1,158/1,598.04 = 634.05/x - Step 3: Cross multiply
1,158x = 1,598.04 × 634.05 - Step 4: Simplify right side
1,158x = 1,013,237.26 - Step 5: Solve for x
x = 1,013,237.26/1,158 - Step 6: Final answer
x = 874.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.