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Finding the Fourth Proportional to 8,285.02, 12,420.50 and 3,601.50

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Solution

The fourth proportional to 8,285.02, 12,420.50 and 3,601.50 is: 5,399.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,285.02 : 12,420.50 = 3,601.50 : x
  2. Step 2: Convert to fraction form
    8,285.02/12,420.50 = 3,601.50/x
  3. Step 3: Cross multiply
    8,285.02x = 12,420.50 × 3,601.50
  4. Step 4: Simplify right side
    8,285.02x = 44,732,430.75
  5. Step 5: Solve for x
    x = 44,732,430.75/8,285.02
  6. Step 6: Final answer
    x = 5,399.19

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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.