Home / 3,288.78-4,538.52-1,891.50

Finding the Fourth Proportional to 3,288.78, 4,538.52 and 1,891.50

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Solution

The fourth proportional to 3,288.78, 4,538.52 and 1,891.50 is: 2,610.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,288.78 : 4,538.52 = 1,891.50 : x
  2. Step 2: Convert to fraction form
    3,288.78/4,538.52 = 1,891.50/x
  3. Step 3: Cross multiply
    3,288.78x = 4,538.52 × 1,891.50
  4. Step 4: Simplify right side
    3,288.78x = 8,584,610.58
  5. Step 5: Solve for x
    x = 8,584,610.58/3,288.78
  6. Step 6: Final answer
    x = 2,610.27

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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.