Home / 3,185.38-4,774.36-1,721.98

Finding the Fourth Proportional to 3,185.38, 4,774.36 and 1,721.98

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Solution

The fourth proportional to 3,185.38, 4,774.36 and 1,721.98 is: 2,580.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.38 : 4,774.36 = 1,721.98 : x
  2. Step 2: Convert to fraction form
    3,185.38/4,774.36 = 1,721.98/x
  3. Step 3: Cross multiply
    3,185.38x = 4,774.36 × 1,721.98
  4. Step 4: Simplify right side
    3,185.38x = 8,221,352.43
  5. Step 5: Solve for x
    x = 8,221,352.43/3,185.38
  6. Step 6: Final answer
    x = 2,580.96

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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.