Finding the Fourth Proportional to 2,389.36, 3,584 and 657.98
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Solution
The fourth proportional to 2,389.36, 3,584 and 657.98 is: 986.96
Step by Step Solution
- Step 1: Write the proportion equation
2,389.36 : 3,584 = 657.98 : x - Step 2: Convert to fraction form
2,389.36/3,584 = 657.98/x - Step 3: Cross multiply
2,389.36x = 3,584 × 657.98 - Step 4: Simplify right side
2,389.36x = 2,358,200.32 - Step 5: Solve for x
x = 2,358,200.32/2,389.36 - Step 6: Final answer
x = 986.96
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.