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Finding the Fourth Proportional to 6,246.40, 9,369.70 and 1,863.90

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Solution

The fourth proportional to 6,246.40, 9,369.70 and 1,863.90 is: 2,795.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,246.40 : 9,369.70 = 1,863.90 : x
  2. Step 2: Convert to fraction form
    6,246.40/9,369.70 = 1,863.90/x
  3. Step 3: Cross multiply
    6,246.40x = 9,369.70 × 1,863.90
  4. Step 4: Simplify right side
    6,246.40x = 17,464,183.83
  5. Step 5: Solve for x
    x = 17,464,183.83/6,246.40
  6. Step 6: Final answer
    x = 2,795.88

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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.