Home / 3,163.98-4,745.08-1,312.81

Finding the Fourth Proportional to 3,163.98, 4,745.08 and 1,312.81

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Solution

The fourth proportional to 3,163.98, 4,745.08 and 1,312.81 is: 1,968.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,163.98 : 4,745.08 = 1,312.81 : x
  2. Step 2: Convert to fraction form
    3,163.98/4,745.08 = 1,312.81/x
  3. Step 3: Cross multiply
    3,163.98x = 4,745.08 × 1,312.81
  4. Step 4: Simplify right side
    3,163.98x = 6,229,374.10
  5. Step 5: Solve for x
    x = 6,229,374.10/3,163.98
  6. Step 6: Final answer
    x = 1,968.84

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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.