Finding the Fourth Proportional to 1,139.25, 1,709.28 and 562.53
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Solution
The fourth proportional to 1,139.25, 1,709.28 and 562.53 is: 843.99
Step by Step Solution
- Step 1: Write the proportion equation
1,139.25 : 1,709.28 = 562.53 : x - Step 2: Convert to fraction form
1,139.25/1,709.28 = 562.53/x - Step 3: Cross multiply
1,139.25x = 1,709.28 × 562.53 - Step 4: Simplify right side
1,139.25x = 961,521.28 - Step 5: Solve for x
x = 961,521.28/1,139.25 - Step 6: Final answer
x = 843.99
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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.