Home / 3,956.85-5,460.55-2,188.55

Finding the Fourth Proportional to 3,956.85, 5,460.55 and 2,188.55

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Solution

The fourth proportional to 3,956.85, 5,460.55 and 2,188.55 is: 3,020.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,956.85 : 5,460.55 = 2,188.55 : x
  2. Step 2: Convert to fraction form
    3,956.85/5,460.55 = 2,188.55/x
  3. Step 3: Cross multiply
    3,956.85x = 5,460.55 × 2,188.55
  4. Step 4: Simplify right side
    3,956.85x = 11,950,694.88
  5. Step 5: Solve for x
    x = 11,950,694.88/3,956.85
  6. Step 6: Final answer
    x = 3,020.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.