Home / 3,281.91-4,923.39-1,638.51

Finding the Fourth Proportional to 3,281.91, 4,923.39 and 1,638.51

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Solution

The fourth proportional to 3,281.91, 4,923.39 and 1,638.51 is: 2,458.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,281.91 : 4,923.39 = 1,638.51 : x
  2. Step 2: Convert to fraction form
    3,281.91/4,923.39 = 1,638.51/x
  3. Step 3: Cross multiply
    3,281.91x = 4,923.39 × 1,638.51
  4. Step 4: Simplify right side
    3,281.91x = 8,067,023.75
  5. Step 5: Solve for x
    x = 8,067,023.75/3,281.91
  6. Step 6: Final answer
    x = 2,458.03

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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.