Home / 5,101.43-7,039.87-2,801.79

Finding the Fourth Proportional to 5,101.43, 7,039.87 and 2,801.79

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Solution

The fourth proportional to 5,101.43, 7,039.87 and 2,801.79 is: 3,866.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,101.43 : 7,039.87 = 2,801.79 : x
  2. Step 2: Convert to fraction form
    5,101.43/7,039.87 = 2,801.79/x
  3. Step 3: Cross multiply
    5,101.43x = 7,039.87 × 2,801.79
  4. Step 4: Simplify right side
    5,101.43x = 19,724,237.37
  5. Step 5: Solve for x
    x = 19,724,237.37/5,101.43
  6. Step 6: Final answer
    x = 3,866.41

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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.