Finding the Fourth Proportional to 2,298.05, 3,171.21 and 1,250.09
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Solution
The fourth proportional to 2,298.05, 3,171.21 and 1,250.09 is: 1,725.07
Step by Step Solution
- Step 1: Write the proportion equation
2,298.05 : 3,171.21 = 1,250.09 : x - Step 2: Convert to fraction form
2,298.05/3,171.21 = 1,250.09/x - Step 3: Cross multiply
2,298.05x = 3,171.21 × 1,250.09 - Step 4: Simplify right side
2,298.05x = 3,964,282.05 - Step 5: Solve for x
x = 3,964,282.05/2,298.05 - Step 6: Final answer
x = 1,725.07
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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.