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Finding the Fourth Proportional to 5,898, 8,138.88 and 3,245.70

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Solution

The fourth proportional to 5,898, 8,138.88 and 3,245.70 is: 4,478.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,898 : 8,138.88 = 3,245.70 : x
  2. Step 2: Convert to fraction form
    5,898/8,138.88 = 3,245.70/x
  3. Step 3: Cross multiply
    5,898x = 8,138.88 × 3,245.70
  4. Step 4: Simplify right side
    5,898x = 26,416,362.82
  5. Step 5: Solve for x
    x = 26,416,362.82/5,898
  6. Step 6: Final answer
    x = 4,478.87

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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.