Finding the Fourth Proportional to 1,022.18, 1,532.86 and 372.76
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Solution
The fourth proportional to 1,022.18, 1,532.86 and 372.76 is: 558.99
Step by Step Solution
- Step 1: Write the proportion equation
1,022.18 : 1,532.86 = 372.76 : x - Step 2: Convert to fraction form
1,022.18/1,532.86 = 372.76/x - Step 3: Cross multiply
1,022.18x = 1,532.86 × 372.76 - Step 4: Simplify right side
1,022.18x = 571,384.13 - Step 5: Solve for x
x = 571,384.13/1,022.18 - Step 6: Final answer
x = 558.99
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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.