Home / 3,956.86-5,460.42-2,188.47

Finding the Fourth Proportional to 3,956.86, 5,460.42 and 2,188.47

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Solution

The fourth proportional to 3,956.86, 5,460.42 and 2,188.47 is: 3,020.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,956.86 : 5,460.42 = 2,188.47 : x
  2. Step 2: Convert to fraction form
    3,956.86/5,460.42 = 2,188.47/x
  3. Step 3: Cross multiply
    3,956.86x = 5,460.42 × 2,188.47
  4. Step 4: Simplify right side
    3,956.86x = 11,949,965.36
  5. Step 5: Solve for x
    x = 11,949,965.36/3,956.86
  6. Step 6: Final answer
    x = 3,020.06

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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.