Finding the Fourth Proportional to 2,454.23, 3,386.74 and 1,392.07
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Solution
The fourth proportional to 2,454.23, 3,386.74 and 1,392.07 is: 1,921.00
Step by Step Solution
- Step 1: Write the proportion equation
2,454.23 : 3,386.74 = 1,392.07 : x - Step 2: Convert to fraction form
2,454.23/3,386.74 = 1,392.07/x - Step 3: Cross multiply
2,454.23x = 3,386.74 × 1,392.07 - Step 4: Simplify right side
2,454.23x = 4,714,579.15 - Step 5: Solve for x
x = 4,714,579.15/2,454.23 - Step 6: Final answer
x = 1,921.00
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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.