Home / 7,721.58-11,582.57-2,174.89

Finding the Fourth Proportional to 7,721.58, 11,582.57 and 2,174.89

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Solution

The fourth proportional to 7,721.58, 11,582.57 and 2,174.89 is: 3,262.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.58 : 11,582.57 = 2,174.89 : x
  2. Step 2: Convert to fraction form
    7,721.58/11,582.57 = 2,174.89/x
  3. Step 3: Cross multiply
    7,721.58x = 11,582.57 × 2,174.89
  4. Step 4: Simplify right side
    7,721.58x = 25,190,819.27
  5. Step 5: Solve for x
    x = 25,190,819.27/7,721.58
  6. Step 6: Final answer
    x = 3,262.39

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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.