Home / 4,391.38-6,579.76-3,090.12

Finding the Fourth Proportional to 4,391.38, 6,579.76 and 3,090.12

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Solution

The fourth proportional to 4,391.38, 6,579.76 and 3,090.12 is: 4,630.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,391.38 : 6,579.76 = 3,090.12 : x
  2. Step 2: Convert to fraction form
    4,391.38/6,579.76 = 3,090.12/x
  3. Step 3: Cross multiply
    4,391.38x = 6,579.76 × 3,090.12
  4. Step 4: Simplify right side
    4,391.38x = 20,332,207.35
  5. Step 5: Solve for x
    x = 20,332,207.35/4,391.38
  6. Step 6: Final answer
    x = 4,630.03

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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.