Finding the Fourth Proportional to 5,403.99, 7,457.51 and 2,919.99
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Solution
The fourth proportional to 5,403.99, 7,457.51 and 2,919.99 is: 4,029.59
Step by Step Solution
- Step 1: Write the proportion equation
5,403.99 : 7,457.51 = 2,919.99 : x - Step 2: Convert to fraction form
5,403.99/7,457.51 = 2,919.99/x - Step 3: Cross multiply
5,403.99x = 7,457.51 × 2,919.99 - Step 4: Simplify right side
5,403.99x = 21,775,840.02 - Step 5: Solve for x
x = 21,775,840.02/5,403.99 - Step 6: Final answer
x = 4,029.59
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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.