Finding the Fourth Proportional to 5,027.21, 6,936.35 and 3,210.99
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Solution
The fourth proportional to 5,027.21, 6,936.35 and 3,210.99 is: 4,430.40
Step by Step Solution
- Step 1: Write the proportion equation
5,027.21 : 6,936.35 = 3,210.99 : x - Step 2: Convert to fraction form
5,027.21/6,936.35 = 3,210.99/x - Step 3: Cross multiply
5,027.21x = 6,936.35 × 3,210.99 - Step 4: Simplify right side
5,027.21x = 22,272,534.43 - Step 5: Solve for x
x = 22,272,534.43/5,027.21 - Step 6: Final answer
x = 4,430.40
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1.5x scale
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.