Home / 6,469-8,928.30-3,676.12

Finding the Fourth Proportional to 6,469, 8,928.30 and 3,676.12

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Solution

The fourth proportional to 6,469, 8,928.30 and 3,676.12 is: 5,073.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,469 : 8,928.30 = 3,676.12 : x
  2. Step 2: Convert to fraction form
    6,469/8,928.30 = 3,676.12/x
  3. Step 3: Cross multiply
    6,469x = 8,928.30 × 3,676.12
  4. Step 4: Simplify right side
    6,469x = 32,821,502.20
  5. Step 5: Solve for x
    x = 32,821,502.20/6,469
  6. Step 6: Final answer
    x = 5,073.66

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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.