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Finding the Fourth Proportional to 3,474.64, 5,209.08 and 1,624.78

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Solution

The fourth proportional to 3,474.64, 5,209.08 and 1,624.78 is: 2,435.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,474.64 : 5,209.08 = 1,624.78 : x
  2. Step 2: Convert to fraction form
    3,474.64/5,209.08 = 1,624.78/x
  3. Step 3: Cross multiply
    3,474.64x = 5,209.08 × 1,624.78
  4. Step 4: Simplify right side
    3,474.64x = 8,463,609.00
  5. Step 5: Solve for x
    x = 8,463,609.00/3,474.64
  6. Step 6: Final answer
    x = 2,435.82

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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.