Home / 3,460.58-5,187.99-1,379.30

Finding the Fourth Proportional to 3,460.58, 5,187.99 and 1,379.30

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Solution

The fourth proportional to 3,460.58, 5,187.99 and 1,379.30 is: 2,067.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,460.58 : 5,187.99 = 1,379.30 : x
  2. Step 2: Convert to fraction form
    3,460.58/5,187.99 = 1,379.30/x
  3. Step 3: Cross multiply
    3,460.58x = 5,187.99 × 1,379.30
  4. Step 4: Simplify right side
    3,460.58x = 7,155,794.61
  5. Step 5: Solve for x
    x = 7,155,794.61/3,460.58
  6. Step 6: Final answer
    x = 2,067.80

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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.