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Finding the Fourth Proportional to 6,376.81, 8,789.68 and 4,758.97

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Solution

The fourth proportional to 6,376.81, 8,789.68 and 4,758.97 is: 6,559.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,376.81 : 8,789.68 = 4,758.97 : x
  2. Step 2: Convert to fraction form
    6,376.81/8,789.68 = 4,758.97/x
  3. Step 3: Cross multiply
    6,376.81x = 8,789.68 × 4,758.97
  4. Step 4: Simplify right side
    6,376.81x = 41,829,823.43
  5. Step 5: Solve for x
    x = 41,829,823.43/6,376.81
  6. Step 6: Final answer
    x = 6,559.68

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Why These Related Problems?

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