Home / 3,883.48-5,359.20-2,115.09

Finding the Fourth Proportional to 3,883.48, 5,359.20 and 2,115.09

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Solution

The fourth proportional to 3,883.48, 5,359.20 and 2,115.09 is: 2,918.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,883.48 : 5,359.20 = 2,115.09 : x
  2. Step 2: Convert to fraction form
    3,883.48/5,359.20 = 2,115.09/x
  3. Step 3: Cross multiply
    3,883.48x = 5,359.20 × 2,115.09
  4. Step 4: Simplify right side
    3,883.48x = 11,335,190.33
  5. Step 5: Solve for x
    x = 11,335,190.33/3,883.48
  6. Step 6: Final answer
    x = 2,918.82

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1.5x scale

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.