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Finding the Fourth Proportional to 3,299.76, 4,968.72 and 2,720.22

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Solution

The fourth proportional to 3,299.76, 4,968.72 and 2,720.22 is: 4,096.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,299.76 : 4,968.72 = 2,720.22 : x
  2. Step 2: Convert to fraction form
    3,299.76/4,968.72 = 2,720.22/x
  3. Step 3: Cross multiply
    3,299.76x = 4,968.72 × 2,720.22
  4. Step 4: Simplify right side
    3,299.76x = 13,516,011.52
  5. Step 5: Solve for x
    x = 13,516,011.52/3,299.76
  6. Step 6: Final answer
    x = 4,096.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.