Home / 4,969.12-7,453.68-2,665.12

Finding the Fourth Proportional to 4,969.12, 7,453.68 and 2,665.12

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Solution

The fourth proportional to 4,969.12, 7,453.68 and 2,665.12 is: 3,997.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,969.12 : 7,453.68 = 2,665.12 : x
  2. Step 2: Convert to fraction form
    4,969.12/7,453.68 = 2,665.12/x
  3. Step 3: Cross multiply
    4,969.12x = 7,453.68 × 2,665.12
  4. Step 4: Simplify right side
    4,969.12x = 19,864,951.64
  5. Step 5: Solve for x
    x = 19,864,951.64/4,969.12
  6. Step 6: Final answer
    x = 3,997.68

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1.5x scale

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.