Home / 3,937.21-5,905.81-1,163.67

Finding the Fourth Proportional to 3,937.21, 5,905.81 and 1,163.67

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Solution

The fourth proportional to 3,937.21, 5,905.81 and 1,163.67 is: 1,745.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,937.21 : 5,905.81 = 1,163.67 : x
  2. Step 2: Convert to fraction form
    3,937.21/5,905.81 = 1,163.67/x
  3. Step 3: Cross multiply
    3,937.21x = 5,905.81 × 1,163.67
  4. Step 4: Simplify right side
    3,937.21x = 6,872,393.23
  5. Step 5: Solve for x
    x = 6,872,393.23/3,937.21
  6. Step 6: Final answer
    x = 1,745.50

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1.5x scale

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.