Home / 3,489.28-4,812.80-2,383.36

Finding the Fourth Proportional to 3,489.28, 4,812.80 and 2,383.36

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Solution

The fourth proportional to 3,489.28, 4,812.80 and 2,383.36 is: 3,287.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.28 : 4,812.80 = 2,383.36 : x
  2. Step 2: Convert to fraction form
    3,489.28/4,812.80 = 2,383.36/x
  3. Step 3: Cross multiply
    3,489.28x = 4,812.80 × 2,383.36
  4. Step 4: Simplify right side
    3,489.28x = 11,470,635.01
  5. Step 5: Solve for x
    x = 11,470,635.01/3,489.28
  6. Step 6: Final answer
    x = 3,287.39

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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.