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Finding the Fourth Proportional to 3,969.02, 5,954.50 and 1,371.98

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Solution

The fourth proportional to 3,969.02, 5,954.50 and 1,371.98 is: 2,058.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.02 : 5,954.50 = 1,371.98 : x
  2. Step 2: Convert to fraction form
    3,969.02/5,954.50 = 1,371.98/x
  3. Step 3: Cross multiply
    3,969.02x = 5,954.50 × 1,371.98
  4. Step 4: Simplify right side
    3,969.02x = 8,169,454.91
  5. Step 5: Solve for x
    x = 8,169,454.91/3,969.02
  6. Step 6: Final answer
    x = 2,058.31

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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.