Finding the Fourth Proportional to 752.98, 1,129.26 and 510.99
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Solution
The fourth proportional to 752.98, 1,129.26 and 510.99 is: 766.35
Step by Step Solution
- Step 1: Write the proportion equation
752.98 : 1,129.26 = 510.99 : x - Step 2: Convert to fraction form
752.98/1,129.26 = 510.99/x - Step 3: Cross multiply
752.98x = 1,129.26 × 510.99 - Step 4: Simplify right side
752.98x = 577,040.57 - Step 5: Solve for x
x = 577,040.57/752.98 - Step 6: Final answer
x = 766.35
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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.