Home / 4,789.28-7,178.80-2,733.60

Finding the Fourth Proportional to 4,789.28, 7,178.80 and 2,733.60

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Solution

The fourth proportional to 4,789.28, 7,178.80 and 2,733.60 is: 4,097.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,789.28 : 7,178.80 = 2,733.60 : x
  2. Step 2: Convert to fraction form
    4,789.28/7,178.80 = 2,733.60/x
  3. Step 3: Cross multiply
    4,789.28x = 7,178.80 × 2,733.60
  4. Step 4: Simplify right side
    4,789.28x = 19,623,967.68
  5. Step 5: Solve for x
    x = 19,623,967.68/4,789.28
  6. Step 6: Final answer
    x = 4,097.48

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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.