Home / 3,455.78-5,183.14-1,263.98

Finding the Fourth Proportional to 3,455.78, 5,183.14 and 1,263.98

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Solution

The fourth proportional to 3,455.78, 5,183.14 and 1,263.98 is: 1,895.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.78 : 5,183.14 = 1,263.98 : x
  2. Step 2: Convert to fraction form
    3,455.78/5,183.14 = 1,263.98/x
  3. Step 3: Cross multiply
    3,455.78x = 5,183.14 × 1,263.98
  4. Step 4: Simplify right side
    3,455.78x = 6,551,385.30
  5. Step 5: Solve for x
    x = 6,551,385.30/3,455.78
  6. Step 6: Final answer
    x = 1,895.78

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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.