Home / 2,578.35-3,865.77-1,190.93

Finding the Fourth Proportional to 2,578.35, 3,865.77 and 1,190.93

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Solution

The fourth proportional to 2,578.35, 3,865.77 and 1,190.93 is: 1,785.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578.35 : 3,865.77 = 1,190.93 : x
  2. Step 2: Convert to fraction form
    2,578.35/3,865.77 = 1,190.93/x
  3. Step 3: Cross multiply
    2,578.35x = 3,865.77 × 1,190.93
  4. Step 4: Simplify right side
    2,578.35x = 4,603,842.14
  5. Step 5: Solve for x
    x = 4,603,842.14/2,578.35
  6. Step 6: Final answer
    x = 1,785.58

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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.