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Finding the Fourth Proportional to 7,099.59, 9,797.38 and 4,115.36

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Solution

The fourth proportional to 7,099.59, 9,797.38 and 4,115.36 is: 5,679.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,099.59 : 9,797.38 = 4,115.36 : x
  2. Step 2: Convert to fraction form
    7,099.59/9,797.38 = 4,115.36/x
  3. Step 3: Cross multiply
    7,099.59x = 9,797.38 × 4,115.36
  4. Step 4: Simplify right side
    7,099.59x = 40,319,745.76
  5. Step 5: Solve for x
    x = 40,319,745.76/7,099.59
  6. Step 6: Final answer
    x = 5,679.17

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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.