Home / 4,905.79-7,359.60-1,619.02

Finding the Fourth Proportional to 4,905.79, 7,359.60 and 1,619.02

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Solution

The fourth proportional to 4,905.79, 7,359.60 and 1,619.02 is: 2,428.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,905.79 : 7,359.60 = 1,619.02 : x
  2. Step 2: Convert to fraction form
    4,905.79/7,359.60 = 1,619.02/x
  3. Step 3: Cross multiply
    4,905.79x = 7,359.60 × 1,619.02
  4. Step 4: Simplify right side
    4,905.79x = 11,915,339.59
  5. Step 5: Solve for x
    x = 11,915,339.59/4,905.79
  6. Step 6: Final answer
    x = 2,428.83

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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.