Home / 3,781.09-5,667.84-1,440.49

Finding the Fourth Proportional to 3,781.09, 5,667.84 and 1,440.49

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Solution

The fourth proportional to 3,781.09, 5,667.84 and 1,440.49 is: 2,159.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781.09 : 5,667.84 = 1,440.49 : x
  2. Step 2: Convert to fraction form
    3,781.09/5,667.84 = 1,440.49/x
  3. Step 3: Cross multiply
    3,781.09x = 5,667.84 × 1,440.49
  4. Step 4: Simplify right side
    3,781.09x = 8,164,466.84
  5. Step 5: Solve for x
    x = 8,164,466.84/3,781.09
  6. Step 6: Final answer
    x = 2,159.29

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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.