Home / 4,789.46-7,174.59-2,188.82

Finding the Fourth Proportional to 4,789.46, 7,174.59 and 2,188.82

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Solution

The fourth proportional to 4,789.46, 7,174.59 and 2,188.82 is: 3,278.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,789.46 : 7,174.59 = 2,188.82 : x
  2. Step 2: Convert to fraction form
    4,789.46/7,174.59 = 2,188.82/x
  3. Step 3: Cross multiply
    4,789.46x = 7,174.59 × 2,188.82
  4. Step 4: Simplify right side
    4,789.46x = 15,703,886.08
  5. Step 5: Solve for x
    x = 15,703,886.08/4,789.46
  6. Step 6: Final answer
    x = 3,278.84

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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.