Home / 5,109.48-7,664.22-2,187.54

Finding the Fourth Proportional to 5,109.48, 7,664.22 and 2,187.54

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Solution

The fourth proportional to 5,109.48, 7,664.22 and 2,187.54 is: 3,281.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,109.48 : 7,664.22 = 2,187.54 : x
  2. Step 2: Convert to fraction form
    5,109.48/7,664.22 = 2,187.54/x
  3. Step 3: Cross multiply
    5,109.48x = 7,664.22 × 2,187.54
  4. Step 4: Simplify right side
    5,109.48x = 16,765,787.82
  5. Step 5: Solve for x
    x = 16,765,787.82/5,109.48
  6. Step 6: Final answer
    x = 3,281.31

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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.