Home / 3,318.03-4,579.02-1,991.88

Finding the Fourth Proportional to 3,318.03, 4,579.02 and 1,991.88

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Solution

The fourth proportional to 3,318.03, 4,579.02 and 1,991.88 is: 2,748.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.03 : 4,579.02 = 1,991.88 : x
  2. Step 2: Convert to fraction form
    3,318.03/4,579.02 = 1,991.88/x
  3. Step 3: Cross multiply
    3,318.03x = 4,579.02 × 1,991.88
  4. Step 4: Simplify right side
    3,318.03x = 9,120,858.36
  5. Step 5: Solve for x
    x = 9,120,858.36/3,318.03
  6. Step 6: Final answer
    x = 2,748.88

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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.