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Finding the Fourth Proportional to 3,559.78, 5,339.60 and 1,610.62

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Solution

The fourth proportional to 3,559.78, 5,339.60 and 1,610.62 is: 2,415.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,559.78 : 5,339.60 = 1,610.62 : x
  2. Step 2: Convert to fraction form
    3,559.78/5,339.60 = 1,610.62/x
  3. Step 3: Cross multiply
    3,559.78x = 5,339.60 × 1,610.62
  4. Step 4: Simplify right side
    3,559.78x = 8,600,066.55
  5. Step 5: Solve for x
    x = 8,600,066.55/3,559.78
  6. Step 6: Final answer
    x = 2,415.90

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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.