Finding the Fourth Proportional to 2,890,892.42, 3,989,297.14 and 1,584,136.70
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Solution
The fourth proportional to 2,890,892.42, 3,989,297.14 and 1,584,136.70 is: 2,186,034.99
Step by Step Solution
- Step 1: Write the proportion equation
2,890,892.42 : 3,989,297.14 = 1,584,136.70 : x - Step 2: Convert to fraction form
2,890,892.42/3,989,297.14 = 1,584,136.70/x - Step 3: Cross multiply
2,890,892.42x = 3,989,297.14 × 1,584,136.70 - Step 4: Simplify right side
2,890,892.42x = 6,319,591,982,772.21 - Step 5: Solve for x
x = 6,319,591,982,772.21/2,890,892.42 - Step 6: Final answer
x = 2,186,034.99
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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.