Finding the Fourth Proportional to 2,445.98, 3,669.12 and 984.96
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Solution
The fourth proportional to 2,445.98, 3,669.12 and 984.96 is: 1,477.50
Step by Step Solution
- Step 1: Write the proportion equation
2,445.98 : 3,669.12 = 984.96 : x - Step 2: Convert to fraction form
2,445.98/3,669.12 = 984.96/x - Step 3: Cross multiply
2,445.98x = 3,669.12 × 984.96 - Step 4: Simplify right side
2,445.98x = 3,613,936.44 - Step 5: Solve for x
x = 3,613,936.44/2,445.98 - Step 6: Final answer
x = 1,477.50
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Double scale
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1.5x scale
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.