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Finding the Fourth Proportional to 5,921.50, 8,856.06 and 5,267.98

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Solution

The fourth proportional to 5,921.50, 8,856.06 and 5,267.98 is: 7,878.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,921.50 : 8,856.06 = 5,267.98 : x
  2. Step 2: Convert to fraction form
    5,921.50/8,856.06 = 5,267.98/x
  3. Step 3: Cross multiply
    5,921.50x = 8,856.06 × 5,267.98
  4. Step 4: Simplify right side
    5,921.50x = 46,653,546.96
  5. Step 5: Solve for x
    x = 46,653,546.96/5,921.50
  6. Step 6: Final answer
    x = 7,878.67

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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.