Finding the Fourth Proportional to 2,138, 2,950.44 and 1,310
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Solution
The fourth proportional to 2,138, 2,950.44 and 1,310 is: 1,807.80
Step by Step Solution
- Step 1: Write the proportion equation
2,138 : 2,950.44 = 1,310 : x - Step 2: Convert to fraction form
2,138/2,950.44 = 1,310/x - Step 3: Cross multiply
2,138x = 2,950.44 × 1,310 - Step 4: Simplify right side
2,138x = 3,865,076.40 - Step 5: Solve for x
x = 3,865,076.40/2,138 - Step 6: Final answer
x = 1,807.80
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.