Home / 3,469.43-5,211.30-3,319.72

Finding the Fourth Proportional to 3,469.43, 5,211.30 and 3,319.72

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Solution

The fourth proportional to 3,469.43, 5,211.30 and 3,319.72 is: 4,986.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,469.43 : 5,211.30 = 3,319.72 : x
  2. Step 2: Convert to fraction form
    3,469.43/5,211.30 = 3,319.72/x
  3. Step 3: Cross multiply
    3,469.43x = 5,211.30 × 3,319.72
  4. Step 4: Simplify right side
    3,469.43x = 17,300,056.84
  5. Step 5: Solve for x
    x = 17,300,056.84/3,469.43
  6. Step 6: Final answer
    x = 4,986.43

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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.