Home / 7,983.56-11,975.36-2,789.42

Finding the Fourth Proportional to 7,983.56, 11,975.36 and 2,789.42

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Solution

The fourth proportional to 7,983.56, 11,975.36 and 2,789.42 is: 4,184.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,983.56 : 11,975.36 = 2,789.42 : x
  2. Step 2: Convert to fraction form
    7,983.56/11,975.36 = 2,789.42/x
  3. Step 3: Cross multiply
    7,983.56x = 11,975.36 × 2,789.42
  4. Step 4: Simplify right side
    7,983.56x = 33,404,308.69
  5. Step 5: Solve for x
    x = 33,404,308.69/7,983.56
  6. Step 6: Final answer
    x = 4,184.14

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1.5x scale

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.