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Finding the Fourth Proportional to 6,339.11, 8,748 and 3,686.65

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Solution

The fourth proportional to 6,339.11, 8,748 and 3,686.65 is: 5,087.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,339.11 : 8,748 = 3,686.65 : x
  2. Step 2: Convert to fraction form
    6,339.11/8,748 = 3,686.65/x
  3. Step 3: Cross multiply
    6,339.11x = 8,748 × 3,686.65
  4. Step 4: Simplify right side
    6,339.11x = 32,250,792.33
  5. Step 5: Solve for x
    x = 32,250,792.33/6,339.11
  6. Step 6: Final answer
    x = 5,087.59

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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.