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Finding the Fourth Proportional to 3,704.74, 5,555.86 and 1,238.88

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Solution

The fourth proportional to 3,704.74, 5,555.86 and 1,238.88 is: 1,857.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,704.74 : 5,555.86 = 1,238.88 : x
  2. Step 2: Convert to fraction form
    3,704.74/5,555.86 = 1,238.88/x
  3. Step 3: Cross multiply
    3,704.74x = 5,555.86 × 1,238.88
  4. Step 4: Simplify right side
    3,704.74x = 6,883,043.84
  5. Step 5: Solve for x
    x = 6,883,043.84/3,704.74
  6. Step 6: Final answer
    x = 1,857.90

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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.