Finding the Fourth Proportional to 1,158.05, 1,598.10 and 634.08
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Solution
The fourth proportional to 1,158.05, 1,598.10 and 634.08 is: 875.03
Step by Step Solution
- Step 1: Write the proportion equation
1,158.05 : 1,598.10 = 634.08 : x - Step 2: Convert to fraction form
1,158.05/1,598.10 = 634.08/x - Step 3: Cross multiply
1,158.05x = 1,598.10 × 634.08 - Step 4: Simplify right side
1,158.05x = 1,013,323.22 - Step 5: Solve for x
x = 1,013,323.22/1,158.05 - Step 6: Final answer
x = 875.03
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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.