Home / 3,956.31-5,459.63-2,187.88

Finding the Fourth Proportional to 3,956.31, 5,459.63 and 2,187.88

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Solution

The fourth proportional to 3,956.31, 5,459.63 and 2,187.88 is: 3,019.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,956.31 : 5,459.63 = 2,187.88 : x
  2. Step 2: Convert to fraction form
    3,956.31/5,459.63 = 2,187.88/x
  3. Step 3: Cross multiply
    3,956.31x = 5,459.63 × 2,187.88
  4. Step 4: Simplify right side
    3,956.31x = 11,945,015.28
  5. Step 5: Solve for x
    x = 11,945,015.28/3,956.31
  6. Step 6: Final answer
    x = 3,019.23

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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.