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Finding the Fourth Proportional to 8,904.72, 13,354.38 and 2,980.08

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Solution

The fourth proportional to 8,904.72, 13,354.38 and 2,980.08 is: 4,469.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,904.72 : 13,354.38 = 2,980.08 : x
  2. Step 2: Convert to fraction form
    8,904.72/13,354.38 = 2,980.08/x
  3. Step 3: Cross multiply
    8,904.72x = 13,354.38 × 2,980.08
  4. Step 4: Simplify right side
    8,904.72x = 39,797,120.75
  5. Step 5: Solve for x
    x = 39,797,120.75/8,904.72
  6. Step 6: Final answer
    x = 4,469.22

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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.