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Finding the Fourth Proportional to 7,979, 11,011.02 and 4,667

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Solution

The fourth proportional to 7,979, 11,011.02 and 4,667 is: 6,440.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979 : 11,011.02 = 4,667 : x
  2. Step 2: Convert to fraction form
    7,979/11,011.02 = 4,667/x
  3. Step 3: Cross multiply
    7,979x = 11,011.02 × 4,667
  4. Step 4: Simplify right side
    7,979x = 51,388,430.34
  5. Step 5: Solve for x
    x = 51,388,430.34/7,979
  6. Step 6: Final answer
    x = 6,440.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.