Home / 4,890.54-7,328.91-3,789.75

Finding the Fourth Proportional to 4,890.54, 7,328.91 and 3,789.75

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Solution

The fourth proportional to 4,890.54, 7,328.91 and 3,789.75 is: 5,679.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890.54 : 7,328.91 = 3,789.75 : x
  2. Step 2: Convert to fraction form
    4,890.54/7,328.91 = 3,789.75/x
  3. Step 3: Cross multiply
    4,890.54x = 7,328.91 × 3,789.75
  4. Step 4: Simplify right side
    4,890.54x = 27,774,736.67
  5. Step 5: Solve for x
    x = 27,774,736.67/4,890.54
  6. Step 6: Final answer
    x = 5,679.28

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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.