Home / 3,956.29-5,459.61-2,188.06

Finding the Fourth Proportional to 3,956.29, 5,459.61 and 2,188.06

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Solution

The fourth proportional to 3,956.29, 5,459.61 and 2,188.06 is: 3,019.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,956.29 : 5,459.61 = 2,188.06 : x
  2. Step 2: Convert to fraction form
    3,956.29/5,459.61 = 2,188.06/x
  3. Step 3: Cross multiply
    3,956.29x = 5,459.61 × 2,188.06
  4. Step 4: Simplify right side
    3,956.29x = 11,945,954.26
  5. Step 5: Solve for x
    x = 11,945,954.26/3,956.29
  6. Step 6: Final answer
    x = 3,019.48

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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.