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Finding the Fourth Proportional to 4,979.94, 7,469.91 and 1,695.39

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Solution

The fourth proportional to 4,979.94, 7,469.91 and 1,695.39 is: 2,543.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.94 : 7,469.91 = 1,695.39 : x
  2. Step 2: Convert to fraction form
    4,979.94/7,469.91 = 1,695.39/x
  3. Step 3: Cross multiply
    4,979.94x = 7,469.91 × 1,695.39
  4. Step 4: Simplify right side
    4,979.94x = 12,664,410.71
  5. Step 5: Solve for x
    x = 12,664,410.71/4,979.94
  6. Step 6: Final answer
    x = 2,543.09

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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.