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Finding the Fourth Proportional to 4,979.85, 7,460.05 and 3,027.21

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Solution

The fourth proportional to 4,979.85, 7,460.05 and 3,027.21 is: 4,534.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.85 : 7,460.05 = 3,027.21 : x
  2. Step 2: Convert to fraction form
    4,979.85/7,460.05 = 3,027.21/x
  3. Step 3: Cross multiply
    4,979.85x = 7,460.05 × 3,027.21
  4. Step 4: Simplify right side
    4,979.85x = 22,583,137.96
  5. Step 5: Solve for x
    x = 22,583,137.96/4,979.85
  6. Step 6: Final answer
    x = 4,534.90

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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.