Home / 4,748.83-7,122.58-1,628.78

Finding the Fourth Proportional to 4,748.83, 7,122.58 and 1,628.78

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Solution

The fourth proportional to 4,748.83, 7,122.58 and 1,628.78 is: 2,442.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,748.83 : 7,122.58 = 1,628.78 : x
  2. Step 2: Convert to fraction form
    4,748.83/7,122.58 = 1,628.78/x
  3. Step 3: Cross multiply
    4,748.83x = 7,122.58 × 1,628.78
  4. Step 4: Simplify right side
    4,748.83x = 11,601,129.59
  5. Step 5: Solve for x
    x = 11,601,129.59/4,748.83
  6. Step 6: Final answer
    x = 2,442.95

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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.