Home / 7,857.25-11,788.18-3,174.85

Finding the Fourth Proportional to 7,857.25, 11,788.18 and 3,174.85

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Solution

The fourth proportional to 7,857.25, 11,788.18 and 3,174.85 is: 4,763.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,857.25 : 11,788.18 = 3,174.85 : x
  2. Step 2: Convert to fraction form
    7,857.25/11,788.18 = 3,174.85/x
  3. Step 3: Cross multiply
    7,857.25x = 11,788.18 × 3,174.85
  4. Step 4: Simplify right side
    7,857.25x = 37,425,661.62
  5. Step 5: Solve for x
    x = 37,425,661.62/7,857.25
  6. Step 6: Final answer
    x = 4,763.20

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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.