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Finding the Fourth Proportional to 3,176.40, 4,764.60 and 2,706.60

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Solution

The fourth proportional to 3,176.40, 4,764.60 and 2,706.60 is: 4,059.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,176.40 : 4,764.60 = 2,706.60 : x
  2. Step 2: Convert to fraction form
    3,176.40/4,764.60 = 2,706.60/x
  3. Step 3: Cross multiply
    3,176.40x = 4,764.60 × 2,706.60
  4. Step 4: Simplify right side
    3,176.40x = 12,895,866.36
  5. Step 5: Solve for x
    x = 12,895,866.36/3,176.40
  6. Step 6: Final answer
    x = 4,059.90

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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.