Home / 4,257.21-6,389.48-1,661.97

Finding the Fourth Proportional to 4,257.21, 6,389.48 and 1,661.97

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Solution

The fourth proportional to 4,257.21, 6,389.48 and 1,661.97 is: 2,494.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,257.21 : 6,389.48 = 1,661.97 : x
  2. Step 2: Convert to fraction form
    4,257.21/6,389.48 = 1,661.97/x
  3. Step 3: Cross multiply
    4,257.21x = 6,389.48 × 1,661.97
  4. Step 4: Simplify right side
    4,257.21x = 10,619,124.08
  5. Step 5: Solve for x
    x = 10,619,124.08/4,257.21
  6. Step 6: Final answer
    x = 2,494.39

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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.