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Finding the Fourth Proportional to 2,999.56, 4,500.34 and 2,229.72

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Solution

The fourth proportional to 2,999.56, 4,500.34 and 2,229.72 is: 3,345.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.56 : 4,500.34 = 2,229.72 : x
  2. Step 2: Convert to fraction form
    2,999.56/4,500.34 = 2,229.72/x
  3. Step 3: Cross multiply
    2,999.56x = 4,500.34 × 2,229.72
  4. Step 4: Simplify right side
    2,999.56x = 10,034,498.10
  5. Step 5: Solve for x
    x = 10,034,498.10/2,999.56
  6. Step 6: Final answer
    x = 3,345.32

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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.