Home / 3,579.96-5,360.76-2,120.16

Finding the Fourth Proportional to 3,579.96, 5,360.76 and 2,120.16

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Solution

The fourth proportional to 3,579.96, 5,360.76 and 2,120.16 is: 3,174.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.96 : 5,360.76 = 2,120.16 : x
  2. Step 2: Convert to fraction form
    3,579.96/5,360.76 = 2,120.16/x
  3. Step 3: Cross multiply
    3,579.96x = 5,360.76 × 2,120.16
  4. Step 4: Simplify right side
    3,579.96x = 11,365,668.92
  5. Step 5: Solve for x
    x = 11,365,668.92/3,579.96
  6. Step 6: Final answer
    x = 3,174.80

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1.5x scale

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.