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Finding the Fourth Proportional to 6,318.03, 9,479.49 and 2,619.31

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Solution

The fourth proportional to 6,318.03, 9,479.49 and 2,619.31 is: 3,929.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,318.03 : 9,479.49 = 2,619.31 : x
  2. Step 2: Convert to fraction form
    6,318.03/9,479.49 = 2,619.31/x
  3. Step 3: Cross multiply
    6,318.03x = 9,479.49 × 2,619.31
  4. Step 4: Simplify right side
    6,318.03x = 24,829,722.95
  5. Step 5: Solve for x
    x = 24,829,722.95/6,318.03
  6. Step 6: Final answer
    x = 3,929.98

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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.