Home / 6,905.61-10,353.78-3,396.42

Finding the Fourth Proportional to 6,905.61, 10,353.78 and 3,396.42

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Solution

The fourth proportional to 6,905.61, 10,353.78 and 3,396.42 is: 5,092.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,905.61 : 10,353.78 = 3,396.42 : x
  2. Step 2: Convert to fraction form
    6,905.61/10,353.78 = 3,396.42/x
  3. Step 3: Cross multiply
    6,905.61x = 10,353.78 × 3,396.42
  4. Step 4: Simplify right side
    6,905.61x = 35,165,785.47
  5. Step 5: Solve for x
    x = 35,165,785.47/6,905.61
  6. Step 6: Final answer
    x = 5,092.35

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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.