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Finding the Fourth Proportional to 6,392.85, 8,818.75 and 4,399.95

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Solution

The fourth proportional to 6,392.85, 8,818.75 and 4,399.95 is: 6,069.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,392.85 : 8,818.75 = 4,399.95 : x
  2. Step 2: Convert to fraction form
    6,392.85/8,818.75 = 4,399.95/x
  3. Step 3: Cross multiply
    6,392.85x = 8,818.75 × 4,399.95
  4. Step 4: Simplify right side
    6,392.85x = 38,802,059.06
  5. Step 5: Solve for x
    x = 38,802,059.06/6,392.85
  6. Step 6: Final answer
    x = 6,069.60

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.