Home / 3,319.10-4,579.53-2,138.75

Finding the Fourth Proportional to 3,319.10, 4,579.53 and 2,138.75

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Solution

The fourth proportional to 3,319.10, 4,579.53 and 2,138.75 is: 2,950.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319.10 : 4,579.53 = 2,138.75 : x
  2. Step 2: Convert to fraction form
    3,319.10/4,579.53 = 2,138.75/x
  3. Step 3: Cross multiply
    3,319.10x = 4,579.53 × 2,138.75
  4. Step 4: Simplify right side
    3,319.10x = 9,794,469.79
  5. Step 5: Solve for x
    x = 9,794,469.79/3,319.10
  6. Step 6: Final answer
    x = 2,950.94

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1.5x scale

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.