Home / 3,923.16-5,885.38-1,289.90

Finding the Fourth Proportional to 3,923.16, 5,885.38 and 1,289.90

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Solution

The fourth proportional to 3,923.16, 5,885.38 and 1,289.90 is: 1,935.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,923.16 : 5,885.38 = 1,289.90 : x
  2. Step 2: Convert to fraction form
    3,923.16/5,885.38 = 1,289.90/x
  3. Step 3: Cross multiply
    3,923.16x = 5,885.38 × 1,289.90
  4. Step 4: Simplify right side
    3,923.16x = 7,591,560.73
  5. Step 5: Solve for x
    x = 7,591,560.73/3,923.16
  6. Step 6: Final answer
    x = 1,935.06

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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.