Home / 5,905.19-8,857.79-2,979.47

Finding the Fourth Proportional to 5,905.19, 8,857.79 and 2,979.47

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Solution

The fourth proportional to 5,905.19, 8,857.79 and 2,979.47 is: 4,469.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,905.19 : 8,857.79 = 2,979.47 : x
  2. Step 2: Convert to fraction form
    5,905.19/8,857.79 = 2,979.47/x
  3. Step 3: Cross multiply
    5,905.19x = 8,857.79 × 2,979.47
  4. Step 4: Simplify right side
    5,905.19x = 26,391,519.57
  5. Step 5: Solve for x
    x = 26,391,519.57/5,905.19
  6. Step 6: Final answer
    x = 4,469.21

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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.