Finding the Fourth Proportional to 1,121.76, 1,682.48 and 352
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Solution
The fourth proportional to 1,121.76, 1,682.48 and 352 is: 527.95
Step by Step Solution
- Step 1: Write the proportion equation
1,121.76 : 1,682.48 = 352 : x - Step 2: Convert to fraction form
1,121.76/1,682.48 = 352/x - Step 3: Cross multiply
1,121.76x = 1,682.48 × 352 - Step 4: Simplify right side
1,121.76x = 592,232.96 - Step 5: Solve for x
x = 592,232.96/1,121.76 - Step 6: Final answer
x = 527.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.