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Finding the Fourth Proportional to 3,752.03, 5,628.78 and 1,286.93

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Solution

The fourth proportional to 3,752.03, 5,628.78 and 1,286.93 is: 1,930.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,752.03 : 5,628.78 = 1,286.93 : x
  2. Step 2: Convert to fraction form
    3,752.03/5,628.78 = 1,286.93/x
  3. Step 3: Cross multiply
    3,752.03x = 5,628.78 × 1,286.93
  4. Step 4: Simplify right side
    3,752.03x = 7,243,817.70
  5. Step 5: Solve for x
    x = 7,243,817.70/3,752.03
  6. Step 6: Final answer
    x = 1,930.64

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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.