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Finding the Fourth Proportional to 5,878.12, 8,803.74 and 3,819.88

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Solution

The fourth proportional to 5,878.12, 8,803.74 and 3,819.88 is: 5,721.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,878.12 : 8,803.74 = 3,819.88 : x
  2. Step 2: Convert to fraction form
    5,878.12/8,803.74 = 3,819.88/x
  3. Step 3: Cross multiply
    5,878.12x = 8,803.74 × 3,819.88
  4. Step 4: Simplify right side
    5,878.12x = 33,629,230.35
  5. Step 5: Solve for x
    x = 33,629,230.35/5,878.12
  6. Step 6: Final answer
    x = 5,721.09

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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.