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Finding the Fourth Proportional to 6,671.79, 10,004.38 and 3,899.16

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Solution

The fourth proportional to 6,671.79, 10,004.38 and 3,899.16 is: 5,846.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,671.79 : 10,004.38 = 3,899.16 : x
  2. Step 2: Convert to fraction form
    6,671.79/10,004.38 = 3,899.16/x
  3. Step 3: Cross multiply
    6,671.79x = 10,004.38 × 3,899.16
  4. Step 4: Simplify right side
    6,671.79x = 39,008,668.57
  5. Step 5: Solve for x
    x = 39,008,668.57/6,671.79
  6. Step 6: Final answer
    x = 5,846.81

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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.