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Finding the Fourth Proportional to 8,652.32, 12,979.85 and 3,722.00

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Solution

The fourth proportional to 8,652.32, 12,979.85 and 3,722.00 is: 5,583.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,652.32 : 12,979.85 = 3,722.00 : x
  2. Step 2: Convert to fraction form
    8,652.32/12,979.85 = 3,722.00/x
  3. Step 3: Cross multiply
    8,652.32x = 12,979.85 × 3,722.00
  4. Step 4: Simplify right side
    8,652.32x = 48,310,991.20
  5. Step 5: Solve for x
    x = 48,310,991.20/8,652.32
  6. Step 6: Final answer
    x = 5,583.59

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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.