Home / 7,910.52-11,860.08-2,979.76

Finding the Fourth Proportional to 7,910.52, 11,860.08 and 2,979.76

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Solution

The fourth proportional to 7,910.52, 11,860.08 and 2,979.76 is: 4,467.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,910.52 : 11,860.08 = 2,979.76 : x
  2. Step 2: Convert to fraction form
    7,910.52/11,860.08 = 2,979.76/x
  3. Step 3: Cross multiply
    7,910.52x = 11,860.08 × 2,979.76
  4. Step 4: Simplify right side
    7,910.52x = 35,340,191.98
  5. Step 5: Solve for x
    x = 35,340,191.98/7,910.52
  6. Step 6: Final answer
    x = 4,467.49

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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.