Home / 4,748.69-7,123.13-1,628.68

Finding the Fourth Proportional to 4,748.69, 7,123.13 and 1,628.68

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Solution

The fourth proportional to 4,748.69, 7,123.13 and 1,628.68 is: 2,443.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,748.69 : 7,123.13 = 1,628.68 : x
  2. Step 2: Convert to fraction form
    4,748.69/7,123.13 = 1,628.68/x
  3. Step 3: Cross multiply
    4,748.69x = 7,123.13 × 1,628.68
  4. Step 4: Simplify right side
    4,748.69x = 11,601,299.37
  5. Step 5: Solve for x
    x = 11,601,299.37/4,748.69
  6. Step 6: Final answer
    x = 2,443.05

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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.