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Finding the Fourth Proportional to 6,483.28, 9,728 and 3,199.16

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Solution

The fourth proportional to 6,483.28, 9,728 and 3,199.16 is: 4,800.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,483.28 : 9,728 = 3,199.16 : x
  2. Step 2: Convert to fraction form
    6,483.28/9,728 = 3,199.16/x
  3. Step 3: Cross multiply
    6,483.28x = 9,728 × 3,199.16
  4. Step 4: Simplify right side
    6,483.28x = 31,121,428.48
  5. Step 5: Solve for x
    x = 31,121,428.48/6,483.28
  6. Step 6: Final answer
    x = 4,800.26

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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.