Home / 5,429.75-8,138.94-2,509.97

Finding the Fourth Proportional to 5,429.75, 8,138.94 and 2,509.97

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Solution

The fourth proportional to 5,429.75, 8,138.94 and 2,509.97 is: 3,762.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.75 : 8,138.94 = 2,509.97 : x
  2. Step 2: Convert to fraction form
    5,429.75/8,138.94 = 2,509.97/x
  3. Step 3: Cross multiply
    5,429.75x = 8,138.94 × 2,509.97
  4. Step 4: Simplify right side
    5,429.75x = 20,428,495.23
  5. Step 5: Solve for x
    x = 20,428,495.23/5,429.75
  6. Step 6: Final answer
    x = 3,762.33

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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.