Home / 7,935.30-11,890.43-2,930.79

Finding the Fourth Proportional to 7,935.30, 11,890.43 and 2,930.79

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Solution

The fourth proportional to 7,935.30, 11,890.43 and 2,930.79 is: 4,391.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,935.30 : 11,890.43 = 2,930.79 : x
  2. Step 2: Convert to fraction form
    7,935.30/11,890.43 = 2,930.79/x
  3. Step 3: Cross multiply
    7,935.30x = 11,890.43 × 2,930.79
  4. Step 4: Simplify right side
    7,935.30x = 34,848,353.34
  5. Step 5: Solve for x
    x = 34,848,353.34/7,935.30
  6. Step 6: Final answer
    x = 4,391.56

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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.