Home / 3,956.40-5,459.66-2,163.83

Finding the Fourth Proportional to 3,956.40, 5,459.66 and 2,163.83

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Solution

The fourth proportional to 3,956.40, 5,459.66 and 2,163.83 is: 2,986.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,956.40 : 5,459.66 = 2,163.83 : x
  2. Step 2: Convert to fraction form
    3,956.40/5,459.66 = 2,163.83/x
  3. Step 3: Cross multiply
    3,956.40x = 5,459.66 × 2,163.83
  4. Step 4: Simplify right side
    3,956.40x = 11,813,795.16
  5. Step 5: Solve for x
    x = 11,813,795.16/3,956.40
  6. Step 6: Final answer
    x = 2,986.00

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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.