Home / 3,188.19-4,780.25-1,338.36

Finding the Fourth Proportional to 3,188.19, 4,780.25 and 1,338.36

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Solution

The fourth proportional to 3,188.19, 4,780.25 and 1,338.36 is: 2,006.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.19 : 4,780.25 = 1,338.36 : x
  2. Step 2: Convert to fraction form
    3,188.19/4,780.25 = 1,338.36/x
  3. Step 3: Cross multiply
    3,188.19x = 4,780.25 × 1,338.36
  4. Step 4: Simplify right side
    3,188.19x = 6,397,675.79
  5. Step 5: Solve for x
    x = 6,397,675.79/3,188.19
  6. Step 6: Final answer
    x = 2,006.68

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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.