Home / 7,739.21-11,610.78-3,582.21

Finding the Fourth Proportional to 7,739.21, 11,610.78 and 3,582.21

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Solution

The fourth proportional to 7,739.21, 11,610.78 and 3,582.21 is: 5,374.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,739.21 : 11,610.78 = 3,582.21 : x
  2. Step 2: Convert to fraction form
    7,739.21/11,610.78 = 3,582.21/x
  3. Step 3: Cross multiply
    7,739.21x = 11,610.78 × 3,582.21
  4. Step 4: Simplify right side
    7,739.21x = 41,592,238.79
  5. Step 5: Solve for x
    x = 41,592,238.79/7,739.21
  6. Step 6: Final answer
    x = 5,374.22

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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.