Finding the Fourth Proportional to 1,133.99, 1,564.88 and 661.99
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Solution
The fourth proportional to 1,133.99, 1,564.88 and 661.99 is: 913.53
Step by Step Solution
- Step 1: Write the proportion equation
1,133.99 : 1,564.88 = 661.99 : x - Step 2: Convert to fraction form
1,133.99/1,564.88 = 661.99/x - Step 3: Cross multiply
1,133.99x = 1,564.88 × 661.99 - Step 4: Simplify right side
1,133.99x = 1,035,934.91 - Step 5: Solve for x
x = 1,035,934.91/1,133.99 - Step 6: Final answer
x = 913.53
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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.