Home / 2,418.26-3,627.59-858.60

Finding the Fourth Proportional to 2,418.26, 3,627.59 and 858.60

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Solution

The fourth proportional to 2,418.26, 3,627.59 and 858.60 is: 1,287.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,418.26 : 3,627.59 = 858.60 : x
  2. Step 2: Convert to fraction form
    2,418.26/3,627.59 = 858.60/x
  3. Step 3: Cross multiply
    2,418.26x = 3,627.59 × 858.60
  4. Step 4: Simplify right side
    2,418.26x = 3,114,644.48
  5. Step 5: Solve for x
    x = 3,114,644.48/2,418.26
  6. Step 6: Final answer
    x = 1,287.97

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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.