Home / 3,956.12-5,459.43-2,187.73

Finding the Fourth Proportional to 3,956.12, 5,459.43 and 2,187.73

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Solution

The fourth proportional to 3,956.12, 5,459.43 and 2,187.73 is: 3,019.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,956.12 : 5,459.43 = 2,187.73 : x
  2. Step 2: Convert to fraction form
    3,956.12/5,459.43 = 2,187.73/x
  3. Step 3: Cross multiply
    3,956.12x = 5,459.43 × 2,187.73
  4. Step 4: Simplify right side
    3,956.12x = 11,943,758.79
  5. Step 5: Solve for x
    x = 11,943,758.79/3,956.12
  6. Step 6: Final answer
    x = 3,019.06

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1.5x scale

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.