Home / 3,318.35-4,579.09-1,973.89

Finding the Fourth Proportional to 3,318.35, 4,579.09 and 1,973.89

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Solution

The fourth proportional to 3,318.35, 4,579.09 and 1,973.89 is: 2,723.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.35 : 4,579.09 = 1,973.89 : x
  2. Step 2: Convert to fraction form
    3,318.35/4,579.09 = 1,973.89/x
  3. Step 3: Cross multiply
    3,318.35x = 4,579.09 × 1,973.89
  4. Step 4: Simplify right side
    3,318.35x = 9,038,623.27
  5. Step 5: Solve for x
    x = 9,038,623.27/3,318.35
  6. Step 6: Final answer
    x = 2,723.83

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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.