Home / 3,126.80-4,686.28-2,735.88

Finding the Fourth Proportional to 3,126.80, 4,686.28 and 2,735.88

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Solution

The fourth proportional to 3,126.80, 4,686.28 and 2,735.88 is: 4,100.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.80 : 4,686.28 = 2,735.88 : x
  2. Step 2: Convert to fraction form
    3,126.80/4,686.28 = 2,735.88/x
  3. Step 3: Cross multiply
    3,126.80x = 4,686.28 × 2,735.88
  4. Step 4: Simplify right side
    3,126.80x = 12,821,099.73
  5. Step 5: Solve for x
    x = 12,821,099.73/3,126.80
  6. Step 6: Final answer
    x = 4,100.39

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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.