Home / 3,883.98-5,359.74-2,115.54

Finding the Fourth Proportional to 3,883.98, 5,359.74 and 2,115.54

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Solution

The fourth proportional to 3,883.98, 5,359.74 and 2,115.54 is: 2,919.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,883.98 : 5,359.74 = 2,115.54 : x
  2. Step 2: Convert to fraction form
    3,883.98/5,359.74 = 2,115.54/x
  3. Step 3: Cross multiply
    3,883.98x = 5,359.74 × 2,115.54
  4. Step 4: Simplify right side
    3,883.98x = 11,338,744.36
  5. Step 5: Solve for x
    x = 11,338,744.36/3,883.98
  6. Step 6: Final answer
    x = 2,919.36

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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.