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Finding the Fourth Proportional to 3,898.77, 5,848.74 and 1,433.40

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Solution

The fourth proportional to 3,898.77, 5,848.74 and 1,433.40 is: 2,150.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,898.77 : 5,848.74 = 1,433.40 : x
  2. Step 2: Convert to fraction form
    3,898.77/5,848.74 = 1,433.40/x
  3. Step 3: Cross multiply
    3,898.77x = 5,848.74 × 1,433.40
  4. Step 4: Simplify right side
    3,898.77x = 8,383,578.54
  5. Step 5: Solve for x
    x = 8,383,578.54/3,898.77
  6. Step 6: Final answer
    x = 2,150.31

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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.