Home / 7,979.72-11,962.14-3,535.02

Finding the Fourth Proportional to 7,979.72, 11,962.14 and 3,535.02

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Solution

The fourth proportional to 7,979.72, 11,962.14 and 3,535.02 is: 5,299.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.72 : 11,962.14 = 3,535.02 : x
  2. Step 2: Convert to fraction form
    7,979.72/11,962.14 = 3,535.02/x
  3. Step 3: Cross multiply
    7,979.72x = 11,962.14 × 3,535.02
  4. Step 4: Simplify right side
    7,979.72x = 42,286,404.14
  5. Step 5: Solve for x
    x = 42,286,404.14/7,979.72
  6. Step 6: Final answer
    x = 5,299.24

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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.