Home / 3,136.80-4,705.20-2,954.55

Finding the Fourth Proportional to 3,136.80, 4,705.20 and 2,954.55

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Solution

The fourth proportional to 3,136.80, 4,705.20 and 2,954.55 is: 4,431.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.80 : 4,705.20 = 2,954.55 : x
  2. Step 2: Convert to fraction form
    3,136.80/4,705.20 = 2,954.55/x
  3. Step 3: Cross multiply
    3,136.80x = 4,705.20 × 2,954.55
  4. Step 4: Simplify right side
    3,136.80x = 13,901,748.66
  5. Step 5: Solve for x
    x = 13,901,748.66/3,136.80
  6. Step 6: Final answer
    x = 4,431.83

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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.