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Finding the Fourth Proportional to 6,286, 8,675.04 and 3,491.68

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Solution

The fourth proportional to 6,286, 8,675.04 and 3,491.68 is: 4,818.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,286 : 8,675.04 = 3,491.68 : x
  2. Step 2: Convert to fraction form
    6,286/8,675.04 = 3,491.68/x
  3. Step 3: Cross multiply
    6,286x = 8,675.04 × 3,491.68
  4. Step 4: Simplify right side
    6,286x = 30,290,463.67
  5. Step 5: Solve for x
    x = 30,290,463.67/6,286
  6. Step 6: Final answer
    x = 4,818.72

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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.