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Finding the Fourth Proportional to 3,661.63, 5,482.08 and 3,315.61

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Solution

The fourth proportional to 3,661.63, 5,482.08 and 3,315.61 is: 4,964.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,661.63 : 5,482.08 = 3,315.61 : x
  2. Step 2: Convert to fraction form
    3,661.63/5,482.08 = 3,315.61/x
  3. Step 3: Cross multiply
    3,661.63x = 5,482.08 × 3,315.61
  4. Step 4: Simplify right side
    3,661.63x = 18,176,439.27
  5. Step 5: Solve for x
    x = 18,176,439.27/3,661.63
  6. Step 6: Final answer
    x = 4,964.03

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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.