Home / 5,129.53-7,694.46-1,619.57

Finding the Fourth Proportional to 5,129.53, 7,694.46 and 1,619.57

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Solution

The fourth proportional to 5,129.53, 7,694.46 and 1,619.57 is: 2,429.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129.53 : 7,694.46 = 1,619.57 : x
  2. Step 2: Convert to fraction form
    5,129.53/7,694.46 = 1,619.57/x
  3. Step 3: Cross multiply
    5,129.53x = 7,694.46 × 1,619.57
  4. Step 4: Simplify right side
    5,129.53x = 12,461,735.82
  5. Step 5: Solve for x
    x = 12,461,735.82/5,129.53
  6. Step 6: Final answer
    x = 2,429.41

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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.