Home / 3,743.78-5,615.99-1,277.60

Finding the Fourth Proportional to 3,743.78, 5,615.99 and 1,277.60

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Solution

The fourth proportional to 3,743.78, 5,615.99 and 1,277.60 is: 1,916.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,743.78 : 5,615.99 = 1,277.60 : x
  2. Step 2: Convert to fraction form
    3,743.78/5,615.99 = 1,277.60/x
  3. Step 3: Cross multiply
    3,743.78x = 5,615.99 × 1,277.60
  4. Step 4: Simplify right side
    3,743.78x = 7,174,982.44
  5. Step 5: Solve for x
    x = 7,174,982.44/3,743.78
  6. Step 6: Final answer
    x = 1,916.51

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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.