Home / 3,781.22-5,668.31-2,390.51

Finding the Fourth Proportional to 3,781.22, 5,668.31 and 2,390.51

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Solution

The fourth proportional to 3,781.22, 5,668.31 and 2,390.51 is: 3,583.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781.22 : 5,668.31 = 2,390.51 : x
  2. Step 2: Convert to fraction form
    3,781.22/5,668.31 = 2,390.51/x
  3. Step 3: Cross multiply
    3,781.22x = 5,668.31 × 2,390.51
  4. Step 4: Simplify right side
    3,781.22x = 13,550,171.89
  5. Step 5: Solve for x
    x = 13,550,171.89/3,781.22
  6. Step 6: Final answer
    x = 3,583.55

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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.