Home / 7,582.58-11,375.39-3,140.54

Finding the Fourth Proportional to 7,582.58, 11,375.39 and 3,140.54

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Solution

The fourth proportional to 7,582.58, 11,375.39 and 3,140.54 is: 4,711.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,582.58 : 11,375.39 = 3,140.54 : x
  2. Step 2: Convert to fraction form
    7,582.58/11,375.39 = 3,140.54/x
  3. Step 3: Cross multiply
    7,582.58x = 11,375.39 × 3,140.54
  4. Step 4: Simplify right side
    7,582.58x = 35,724,794.73
  5. Step 5: Solve for x
    x = 35,724,794.73/7,582.58
  6. Step 6: Final answer
    x = 4,711.43

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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.