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Finding the Fourth Proportional to 4,811.72, 7,217.78 and 1,524.74

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Solution

The fourth proportional to 4,811.72, 7,217.78 and 1,524.74 is: 2,287.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,811.72 : 7,217.78 = 1,524.74 : x
  2. Step 2: Convert to fraction form
    4,811.72/7,217.78 = 1,524.74/x
  3. Step 3: Cross multiply
    4,811.72x = 7,217.78 × 1,524.74
  4. Step 4: Simplify right side
    4,811.72x = 11,005,207.00
  5. Step 5: Solve for x
    x = 11,005,207.00/4,811.72
  6. Step 6: Final answer
    x = 2,287.17

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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.