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Finding the Fourth Proportional to 8,820.58, 13,230.59 and 2,976.70

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Solution

The fourth proportional to 8,820.58, 13,230.59 and 2,976.70 is: 4,464.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,820.58 : 13,230.59 = 2,976.70 : x
  2. Step 2: Convert to fraction form
    8,820.58/13,230.59 = 2,976.70/x
  3. Step 3: Cross multiply
    8,820.58x = 13,230.59 × 2,976.70
  4. Step 4: Simplify right side
    8,820.58x = 39,383,497.25
  5. Step 5: Solve for x
    x = 39,383,497.25/8,820.58
  6. Step 6: Final answer
    x = 4,464.96

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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.