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Finding the Fourth Proportional to 5,455.08, 8,181 and 1,559.88

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Solution

The fourth proportional to 5,455.08, 8,181 and 1,559.88 is: 2,339.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,455.08 : 8,181 = 1,559.88 : x
  2. Step 2: Convert to fraction form
    5,455.08/8,181 = 1,559.88/x
  3. Step 3: Cross multiply
    5,455.08x = 8,181 × 1,559.88
  4. Step 4: Simplify right side
    5,455.08x = 12,761,378.28
  5. Step 5: Solve for x
    x = 12,761,378.28/5,455.08
  6. Step 6: Final answer
    x = 2,339.36

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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.