Finding the Fourth Proportional to 1,118.98, 1,545.67 and 933.08
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Solution
The fourth proportional to 1,118.98, 1,545.67 and 933.08 is: 1,288.88
Step by Step Solution
- Step 1: Write the proportion equation
1,118.98 : 1,545.67 = 933.08 : x - Step 2: Convert to fraction form
1,118.98/1,545.67 = 933.08/x - Step 3: Cross multiply
1,118.98x = 1,545.67 × 933.08 - Step 4: Simplify right side
1,118.98x = 1,442,233.76 - Step 5: Solve for x
x = 1,442,233.76/1,118.98 - Step 6: Final answer
x = 1,288.88
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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.