Home / 4,258.89-6,389.78-2,067.39

Finding the Fourth Proportional to 4,258.89, 6,389.78 and 2,067.39

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Solution

The fourth proportional to 4,258.89, 6,389.78 and 2,067.39 is: 3,101.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,258.89 : 6,389.78 = 2,067.39 : x
  2. Step 2: Convert to fraction form
    4,258.89/6,389.78 = 2,067.39/x
  3. Step 3: Cross multiply
    4,258.89x = 6,389.78 × 2,067.39
  4. Step 4: Simplify right side
    4,258.89x = 13,210,156.94
  5. Step 5: Solve for x
    x = 13,210,156.94/4,258.89
  6. Step 6: Final answer
    x = 3,101.78

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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.