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Finding the Fourth Proportional to 6,480.72, 9,723.96 and 3,402

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Solution

The fourth proportional to 6,480.72, 9,723.96 and 3,402 is: 5,104.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,480.72 : 9,723.96 = 3,402 : x
  2. Step 2: Convert to fraction form
    6,480.72/9,723.96 = 3,402/x
  3. Step 3: Cross multiply
    6,480.72x = 9,723.96 × 3,402
  4. Step 4: Simplify right side
    6,480.72x = 33,080,911.92
  5. Step 5: Solve for x
    x = 33,080,911.92/6,480.72
  6. Step 6: Final answer
    x = 5,104.51

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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.