Home / 5,148.88-7,105.47-2,791.03

Finding the Fourth Proportional to 5,148.88, 7,105.47 and 2,791.03

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Solution

The fourth proportional to 5,148.88, 7,105.47 and 2,791.03 is: 3,851.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.88 : 7,105.47 = 2,791.03 : x
  2. Step 2: Convert to fraction form
    5,148.88/7,105.47 = 2,791.03/x
  3. Step 3: Cross multiply
    5,148.88x = 7,105.47 × 2,791.03
  4. Step 4: Simplify right side
    5,148.88x = 19,831,530.45
  5. Step 5: Solve for x
    x = 19,831,530.45/5,148.88
  6. Step 6: Final answer
    x = 3,851.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.