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Finding the Fourth Proportional to 6,441.30, 8,888.84 and 3,788.88

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Solution

The fourth proportional to 6,441.30, 8,888.84 and 3,788.88 is: 5,228.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,441.30 : 8,888.84 = 3,788.88 : x
  2. Step 2: Convert to fraction form
    6,441.30/8,888.84 = 3,788.88/x
  3. Step 3: Cross multiply
    6,441.30x = 8,888.84 × 3,788.88
  4. Step 4: Simplify right side
    6,441.30x = 33,678,748.10
  5. Step 5: Solve for x
    x = 33,678,748.10/6,441.30
  6. Step 6: Final answer
    x = 5,228.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.