Home / 4,429.78-6,644.64-1,351.78

Finding the Fourth Proportional to 4,429.78, 6,644.64 and 1,351.78

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Solution

The fourth proportional to 4,429.78, 6,644.64 and 1,351.78 is: 2,027.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,429.78 : 6,644.64 = 1,351.78 : x
  2. Step 2: Convert to fraction form
    4,429.78/6,644.64 = 1,351.78/x
  3. Step 3: Cross multiply
    4,429.78x = 6,644.64 × 1,351.78
  4. Step 4: Simplify right side
    4,429.78x = 8,982,091.46
  5. Step 5: Solve for x
    x = 8,982,091.46/4,429.78
  6. Step 6: Final answer
    x = 2,027.66

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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.