Home / 3,956.86-5,460.33-2,188.57

Finding the Fourth Proportional to 3,956.86, 5,460.33 and 2,188.57

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Solution

The fourth proportional to 3,956.86, 5,460.33 and 2,188.57 is: 3,020.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,956.86 : 5,460.33 = 2,188.57 : x
  2. Step 2: Convert to fraction form
    3,956.86/5,460.33 = 2,188.57/x
  3. Step 3: Cross multiply
    3,956.86x = 5,460.33 × 2,188.57
  4. Step 4: Simplify right side
    3,956.86x = 11,950,314.43
  5. Step 5: Solve for x
    x = 11,950,314.43/3,956.86
  6. Step 6: Final answer
    x = 3,020.15

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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.