Home / 3,103.21-4,648.92-1,929.52

Finding the Fourth Proportional to 3,103.21, 4,648.92 and 1,929.52

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Solution

The fourth proportional to 3,103.21, 4,648.92 and 1,929.52 is: 2,890.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,103.21 : 4,648.92 = 1,929.52 : x
  2. Step 2: Convert to fraction form
    3,103.21/4,648.92 = 1,929.52/x
  3. Step 3: Cross multiply
    3,103.21x = 4,648.92 × 1,929.52
  4. Step 4: Simplify right side
    3,103.21x = 8,970,184.12
  5. Step 5: Solve for x
    x = 8,970,184.12/3,103.21
  6. Step 6: Final answer
    x = 2,890.61

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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.