Home / 7,412.39-11,118.60-3,029.85

Finding the Fourth Proportional to 7,412.39, 11,118.60 and 3,029.85

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Solution

The fourth proportional to 7,412.39, 11,118.60 and 3,029.85 is: 4,544.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,412.39 : 11,118.60 = 3,029.85 : x
  2. Step 2: Convert to fraction form
    7,412.39/11,118.60 = 3,029.85/x
  3. Step 3: Cross multiply
    7,412.39x = 11,118.60 × 3,029.85
  4. Step 4: Simplify right side
    7,412.39x = 33,687,690.21
  5. Step 5: Solve for x
    x = 33,687,690.21/7,412.39
  6. Step 6: Final answer
    x = 4,544.78

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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.