Finding the Fourth Proportional to 4,918.19, 6,784.97 and 2,927.63
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Solution
The fourth proportional to 4,918.19, 6,784.97 and 2,927.63 is: 4,038.86
Step by Step Solution
- Step 1: Write the proportion equation
4,918.19 : 6,784.97 = 2,927.63 : x - Step 2: Convert to fraction form
4,918.19/6,784.97 = 2,927.63/x - Step 3: Cross multiply
4,918.19x = 6,784.97 × 2,927.63 - Step 4: Simplify right side
4,918.19x = 19,863,867.08 - Step 5: Solve for x
x = 19,863,867.08/4,918.19 - Step 6: Final answer
x = 4,038.86
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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.