Home / 3,883.64-5,360.46-2,391.80

Finding the Fourth Proportional to 3,883.64, 5,360.46 and 2,391.80

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Solution

The fourth proportional to 3,883.64, 5,360.46 and 2,391.80 is: 3,301.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,883.64 : 5,360.46 = 2,391.80 : x
  2. Step 2: Convert to fraction form
    3,883.64/5,360.46 = 2,391.80/x
  3. Step 3: Cross multiply
    3,883.64x = 5,360.46 × 2,391.80
  4. Step 4: Simplify right side
    3,883.64x = 12,821,148.23
  5. Step 5: Solve for x
    x = 12,821,148.23/3,883.64
  6. Step 6: Final answer
    x = 3,301.32

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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.