Home / 4,103.45-6,155.78-2,155.80

Finding the Fourth Proportional to 4,103.45, 6,155.78 and 2,155.80

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Solution

The fourth proportional to 4,103.45, 6,155.78 and 2,155.80 is: 3,234.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,103.45 : 6,155.78 = 2,155.80 : x
  2. Step 2: Convert to fraction form
    4,103.45/6,155.78 = 2,155.80/x
  3. Step 3: Cross multiply
    4,103.45x = 6,155.78 × 2,155.80
  4. Step 4: Simplify right side
    4,103.45x = 13,270,630.52
  5. Step 5: Solve for x
    x = 13,270,630.52/4,103.45
  6. Step 6: Final answer
    x = 3,234.02

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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.