Finding the Third Proportional to 1,311.19 and 1,779.47
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Solution
The third proportional to 1,311.19 and 1,779.47 is: 2,414.99
Step by Step Solution
- Step 1: Write the proportion equation
1,311.19 : 1,779.47 = 1,779.47 : x - Step 2: Convert to fraction form
1,311.19/1,779.47 = 1,779.47/x - Step 3: Cross multiply
1,311.19x = 1,779.47 × 1,779.47 - Step 4: Simplify right side
1,311.19x = 3,166,509.03 - Step 5: Solve for x
x = 3,166,509.03/1,311.19 - Step 6: Final answer
x = 2,414.99
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These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.