Home / 4,789.71-7,174.97-2,189.07

Finding the Fourth Proportional to 4,789.71, 7,174.97 and 2,189.07

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Solution

The fourth proportional to 4,789.71, 7,174.97 and 2,189.07 is: 3,279.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,789.71 : 7,174.97 = 2,189.07 : x
  2. Step 2: Convert to fraction form
    4,789.71/7,174.97 = 2,189.07/x
  3. Step 3: Cross multiply
    4,789.71x = 7,174.97 × 2,189.07
  4. Step 4: Simplify right side
    4,789.71x = 15,706,500.63
  5. Step 5: Solve for x
    x = 15,706,500.63/4,789.71
  6. Step 6: Final answer
    x = 3,279.22

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1.5x scale

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.