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Finding the Fourth Proportional to 3,137.70, 4,706.55 and 2,835.30

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Solution

The fourth proportional to 3,137.70, 4,706.55 and 2,835.30 is: 4,252.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.70 : 4,706.55 = 2,835.30 : x
  2. Step 2: Convert to fraction form
    3,137.70/4,706.55 = 2,835.30/x
  3. Step 3: Cross multiply
    3,137.70x = 4,706.55 × 2,835.30
  4. Step 4: Simplify right side
    3,137.70x = 13,344,481.22
  5. Step 5: Solve for x
    x = 13,344,481.22/3,137.70
  6. Step 6: Final answer
    x = 4,252.95

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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.