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Finding the Fourth Proportional to 3,105.58, 4,658.60 and 1,025.50

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Solution

The fourth proportional to 3,105.58, 4,658.60 and 1,025.50 is: 1,538.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.58 : 4,658.60 = 1,025.50 : x
  2. Step 2: Convert to fraction form
    3,105.58/4,658.60 = 1,025.50/x
  3. Step 3: Cross multiply
    3,105.58x = 4,658.60 × 1,025.50
  4. Step 4: Simplify right side
    3,105.58x = 4,777,394.30
  5. Step 5: Solve for x
    x = 4,777,394.30/3,105.58
  6. Step 6: Final answer
    x = 1,538.33

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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.