Home / 5,003.75-6,905.71-2,879.37

Finding the Fourth Proportional to 5,003.75, 6,905.71 and 2,879.37

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Solution

The fourth proportional to 5,003.75, 6,905.71 and 2,879.37 is: 3,973.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,003.75 : 6,905.71 = 2,879.37 : x
  2. Step 2: Convert to fraction form
    5,003.75/6,905.71 = 2,879.37/x
  3. Step 3: Cross multiply
    5,003.75x = 6,905.71 × 2,879.37
  4. Step 4: Simplify right side
    5,003.75x = 19,884,094.20
  5. Step 5: Solve for x
    x = 19,884,094.20/5,003.75
  6. Step 6: Final answer
    x = 3,973.84

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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.