Home / 5,149.89-7,721.60-1,862.37

Finding the Fourth Proportional to 5,149.89, 7,721.60 and 1,862.37

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Solution

The fourth proportional to 5,149.89, 7,721.60 and 1,862.37 is: 2,792.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.89 : 7,721.60 = 1,862.37 : x
  2. Step 2: Convert to fraction form
    5,149.89/7,721.60 = 1,862.37/x
  3. Step 3: Cross multiply
    5,149.89x = 7,721.60 × 1,862.37
  4. Step 4: Simplify right side
    5,149.89x = 14,380,466.88
  5. Step 5: Solve for x
    x = 14,380,466.88/5,149.89
  6. Step 6: Final answer
    x = 2,792.38

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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.