Home / 7,984.74-11,979.43-3,303.89

Finding the Fourth Proportional to 7,984.74, 11,979.43 and 3,303.89

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Solution

The fourth proportional to 7,984.74, 11,979.43 and 3,303.89 is: 4,956.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,984.74 : 11,979.43 = 3,303.89 : x
  2. Step 2: Convert to fraction form
    7,984.74/11,979.43 = 3,303.89/x
  3. Step 3: Cross multiply
    7,984.74x = 11,979.43 × 3,303.89
  4. Step 4: Simplify right side
    7,984.74x = 39,578,695.75
  5. Step 5: Solve for x
    x = 39,578,695.75/7,984.74
  6. Step 6: Final answer
    x = 4,956.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.