Home / 5,129.81-7,694.33-1,619.94

Finding the Fourth Proportional to 5,129.81, 7,694.33 and 1,619.94

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Solution

The fourth proportional to 5,129.81, 7,694.33 and 1,619.94 is: 2,429.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129.81 : 7,694.33 = 1,619.94 : x
  2. Step 2: Convert to fraction form
    5,129.81/7,694.33 = 1,619.94/x
  3. Step 3: Cross multiply
    5,129.81x = 7,694.33 × 1,619.94
  4. Step 4: Simplify right side
    5,129.81x = 12,464,352.94
  5. Step 5: Solve for x
    x = 12,464,352.94/5,129.81
  6. Step 6: Final answer
    x = 2,429.79

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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.