Home / 7,961.58-11,942.36-3,582.72

Finding the Fourth Proportional to 7,961.58, 11,942.36 and 3,582.72

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Solution

The fourth proportional to 7,961.58, 11,942.36 and 3,582.72 is: 5,374.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.58 : 11,942.36 = 3,582.72 : x
  2. Step 2: Convert to fraction form
    7,961.58/11,942.36 = 3,582.72/x
  3. Step 3: Cross multiply
    7,961.58x = 11,942.36 × 3,582.72
  4. Step 4: Simplify right side
    7,961.58x = 42,786,114.11
  5. Step 5: Solve for x
    x = 42,786,114.11/7,961.58
  6. Step 6: Final answer
    x = 5,374.07

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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.