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Finding the Fourth Proportional to 3,167.61, 4,748.18 and 1,604.72

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Solution

The fourth proportional to 3,167.61, 4,748.18 and 1,604.72 is: 2,405.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,167.61 : 4,748.18 = 1,604.72 : x
  2. Step 2: Convert to fraction form
    3,167.61/4,748.18 = 1,604.72/x
  3. Step 3: Cross multiply
    3,167.61x = 4,748.18 × 1,604.72
  4. Step 4: Simplify right side
    3,167.61x = 7,619,467.65
  5. Step 5: Solve for x
    x = 7,619,467.65/3,167.61
  6. Step 6: Final answer
    x = 2,405.43

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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.