Home / 3,568.40-4,923.68-1,996.20

Finding the Fourth Proportional to 3,568.40, 4,923.68 and 1,996.20

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Solution

The fourth proportional to 3,568.40, 4,923.68 and 1,996.20 is: 2,754.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,568.40 : 4,923.68 = 1,996.20 : x
  2. Step 2: Convert to fraction form
    3,568.40/4,923.68 = 1,996.20/x
  3. Step 3: Cross multiply
    3,568.40x = 4,923.68 × 1,996.20
  4. Step 4: Simplify right side
    3,568.40x = 9,828,650.02
  5. Step 5: Solve for x
    x = 9,828,650.02/3,568.40
  6. Step 6: Final answer
    x = 2,754.36

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Half scale
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Double scale
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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.