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Finding the Fourth Proportional to 8,800.64, 13,200.96 and 3,610.16

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Solution

The fourth proportional to 8,800.64, 13,200.96 and 3,610.16 is: 5,415.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,800.64 : 13,200.96 = 3,610.16 : x
  2. Step 2: Convert to fraction form
    8,800.64/13,200.96 = 3,610.16/x
  3. Step 3: Cross multiply
    8,800.64x = 13,200.96 × 3,610.16
  4. Step 4: Simplify right side
    8,800.64x = 47,657,511.75
  5. Step 5: Solve for x
    x = 47,657,511.75/8,800.64
  6. Step 6: Final answer
    x = 5,415.24

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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.