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Finding the Fourth Proportional to 4,494.56, 6,738.48 and 1,720.16

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Solution

The fourth proportional to 4,494.56, 6,738.48 and 1,720.16 is: 2,578.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,494.56 : 6,738.48 = 1,720.16 : x
  2. Step 2: Convert to fraction form
    4,494.56/6,738.48 = 1,720.16/x
  3. Step 3: Cross multiply
    4,494.56x = 6,738.48 × 1,720.16
  4. Step 4: Simplify right side
    4,494.56x = 11,591,263.76
  5. Step 5: Solve for x
    x = 11,591,263.76/4,494.56
  6. Step 6: Final answer
    x = 2,578.95

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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.