Home / 8,790.31-13,183.98-3,858.62

Finding the Fourth Proportional to 8,790.31, 13,183.98 and 3,858.62

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Solution

The fourth proportional to 8,790.31, 13,183.98 and 3,858.62 is: 5,787.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,790.31 : 13,183.98 = 3,858.62 : x
  2. Step 2: Convert to fraction form
    8,790.31/13,183.98 = 3,858.62/x
  3. Step 3: Cross multiply
    8,790.31x = 13,183.98 × 3,858.62
  4. Step 4: Simplify right side
    8,790.31x = 50,871,968.91
  5. Step 5: Solve for x
    x = 50,871,968.91/8,790.31
  6. Step 6: Final answer
    x = 5,787.28

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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.