Home / 3,924.09-5,415.39-2,351.88

Finding the Fourth Proportional to 3,924.09, 5,415.39 and 2,351.88

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Solution

The fourth proportional to 3,924.09, 5,415.39 and 2,351.88 is: 3,245.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,924.09 : 5,415.39 = 2,351.88 : x
  2. Step 2: Convert to fraction form
    3,924.09/5,415.39 = 2,351.88/x
  3. Step 3: Cross multiply
    3,924.09x = 5,415.39 × 2,351.88
  4. Step 4: Simplify right side
    3,924.09x = 12,736,347.43
  5. Step 5: Solve for x
    x = 12,736,347.43/3,924.09
  6. Step 6: Final answer
    x = 3,245.68

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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.