Home / 8,783.20-13,171.62-2,938.44

Finding the Fourth Proportional to 8,783.20, 13,171.62 and 2,938.44

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Solution

The fourth proportional to 8,783.20, 13,171.62 and 2,938.44 is: 4,406.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,783.20 : 13,171.62 = 2,938.44 : x
  2. Step 2: Convert to fraction form
    8,783.20/13,171.62 = 2,938.44/x
  3. Step 3: Cross multiply
    8,783.20x = 13,171.62 × 2,938.44
  4. Step 4: Simplify right side
    8,783.20x = 38,704,015.07
  5. Step 5: Solve for x
    x = 38,704,015.07/8,783.20
  6. Step 6: Final answer
    x = 4,406.60

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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.