Finding the Fourth Proportional to 1,320, 1,979.28 and 588.84
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Solution
The fourth proportional to 1,320, 1,979.28 and 588.84 is: 882.94
Step by Step Solution
- Step 1: Write the proportion equation
1,320 : 1,979.28 = 588.84 : x - Step 2: Convert to fraction form
1,320/1,979.28 = 588.84/x - Step 3: Cross multiply
1,320x = 1,979.28 × 588.84 - Step 4: Simplify right side
1,320x = 1,165,479.24 - Step 5: Solve for x
x = 1,165,479.24/1,320 - Step 6: Final answer
x = 882.94
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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.