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Finding the Fourth Proportional to 3,881.58, 5,822.30 and 959.88

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Solution

The fourth proportional to 3,881.58, 5,822.30 and 959.88 is: 1,439.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.58 : 5,822.30 = 959.88 : x
  2. Step 2: Convert to fraction form
    3,881.58/5,822.30 = 959.88/x
  3. Step 3: Cross multiply
    3,881.58x = 5,822.30 × 959.88
  4. Step 4: Simplify right side
    3,881.58x = 5,588,704.52
  5. Step 5: Solve for x
    x = 5,588,704.52/3,881.58
  6. Step 6: Final answer
    x = 1,439.80

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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.