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Finding the Fourth Proportional to 6,231.60, 9,354.60 and 3,308.40

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Solution

The fourth proportional to 6,231.60, 9,354.60 and 3,308.40 is: 4,966.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,231.60 : 9,354.60 = 3,308.40 : x
  2. Step 2: Convert to fraction form
    6,231.60/9,354.60 = 3,308.40/x
  3. Step 3: Cross multiply
    6,231.60x = 9,354.60 × 3,308.40
  4. Step 4: Simplify right side
    6,231.60x = 30,948,758.64
  5. Step 5: Solve for x
    x = 30,948,758.64/6,231.60
  6. Step 6: Final answer
    x = 4,966.42

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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.