Home / 7,437.78-11,163.60-3,930.38

Finding the Fourth Proportional to 7,437.78, 11,163.60 and 3,930.38

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Solution

The fourth proportional to 7,437.78, 11,163.60 and 3,930.38 is: 5,899.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,437.78 : 11,163.60 = 3,930.38 : x
  2. Step 2: Convert to fraction form
    7,437.78/11,163.60 = 3,930.38/x
  3. Step 3: Cross multiply
    7,437.78x = 11,163.60 × 3,930.38
  4. Step 4: Simplify right side
    7,437.78x = 43,877,134.35
  5. Step 5: Solve for x
    x = 43,877,134.35/7,437.78
  6. Step 6: Final answer
    x = 5,899.22

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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.