Home / 3,188.85-4,783.00-1,108.50

Finding the Fourth Proportional to 3,188.85, 4,783.00 and 1,108.50

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Solution

The fourth proportional to 3,188.85, 4,783.00 and 1,108.50 is: 1,662.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.85 : 4,783.00 = 1,108.50 : x
  2. Step 2: Convert to fraction form
    3,188.85/4,783.00 = 1,108.50/x
  3. Step 3: Cross multiply
    3,188.85x = 4,783.00 × 1,108.50
  4. Step 4: Simplify right side
    3,188.85x = 5,301,936.87
  5. Step 5: Solve for x
    x = 5,301,936.87/3,188.85
  6. Step 6: Final answer
    x = 1,662.65

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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.