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Finding the Fourth Proportional to 8,800.21, 13,200.38 and 2,560.64

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Solution

The fourth proportional to 8,800.21, 13,200.38 and 2,560.64 is: 3,840.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,800.21 : 13,200.38 = 2,560.64 : x
  2. Step 2: Convert to fraction form
    8,800.21/13,200.38 = 2,560.64/x
  3. Step 3: Cross multiply
    8,800.21x = 13,200.38 × 2,560.64
  4. Step 4: Simplify right side
    8,800.21x = 33,801,421.04
  5. Step 5: Solve for x
    x = 33,801,421.04/8,800.21
  6. Step 6: Final answer
    x = 3,840.98

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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.