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Finding the Fourth Proportional to 4,764.47, 7,145.79 and 1,644.58

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Solution

The fourth proportional to 4,764.47, 7,145.79 and 1,644.58 is: 2,466.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,764.47 : 7,145.79 = 1,644.58 : x
  2. Step 2: Convert to fraction form
    4,764.47/7,145.79 = 1,644.58/x
  3. Step 3: Cross multiply
    4,764.47x = 7,145.79 × 1,644.58
  4. Step 4: Simplify right side
    4,764.47x = 11,751,819.86
  5. Step 5: Solve for x
    x = 11,751,819.86/4,764.47
  6. Step 6: Final answer
    x = 2,466.55

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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.