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Finding the Fourth Proportional to 6,469.08, 8,930.72 and 4,355.72

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Solution

The fourth proportional to 6,469.08, 8,930.72 and 4,355.72 is: 6,013.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,469.08 : 8,930.72 = 4,355.72 : x
  2. Step 2: Convert to fraction form
    6,469.08/8,930.72 = 4,355.72/x
  3. Step 3: Cross multiply
    6,469.08x = 8,930.72 × 4,355.72
  4. Step 4: Simplify right side
    6,469.08x = 38,899,704.28
  5. Step 5: Solve for x
    x = 38,899,704.28/6,469.08
  6. Step 6: Final answer
    x = 6,013.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.