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Finding the Fourth Proportional to 6,441.75, 8,888.13 and 3,752.64

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Solution

The fourth proportional to 6,441.75, 8,888.13 and 3,752.64 is: 5,177.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,441.75 : 8,888.13 = 3,752.64 : x
  2. Step 2: Convert to fraction form
    6,441.75/8,888.13 = 3,752.64/x
  3. Step 3: Cross multiply
    6,441.75x = 8,888.13 × 3,752.64
  4. Step 4: Simplify right side
    6,441.75x = 33,353,952.16
  5. Step 5: Solve for x
    x = 33,353,952.16/6,441.75
  6. Step 6: Final answer
    x = 5,177.78

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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.