Home / 5,256.78-7,887.47-2,791.01

Finding the Fourth Proportional to 5,256.78, 7,887.47 and 2,791.01

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Solution

The fourth proportional to 5,256.78, 7,887.47 and 2,791.01 is: 4,187.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,256.78 : 7,887.47 = 2,791.01 : x
  2. Step 2: Convert to fraction form
    5,256.78/7,887.47 = 2,791.01/x
  3. Step 3: Cross multiply
    5,256.78x = 7,887.47 × 2,791.01
  4. Step 4: Simplify right side
    5,256.78x = 22,013,954.25
  5. Step 5: Solve for x
    x = 22,013,954.25/5,256.78
  6. Step 6: Final answer
    x = 4,187.73

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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.