Home / 7,622.76-11,431.44-3,459.27

Finding the Fourth Proportional to 7,622.76, 11,431.44 and 3,459.27

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Solution

The fourth proportional to 7,622.76, 11,431.44 and 3,459.27 is: 5,187.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,622.76 : 11,431.44 = 3,459.27 : x
  2. Step 2: Convert to fraction form
    7,622.76/11,431.44 = 3,459.27/x
  3. Step 3: Cross multiply
    7,622.76x = 11,431.44 × 3,459.27
  4. Step 4: Simplify right side
    7,622.76x = 39,544,437.45
  5. Step 5: Solve for x
    x = 39,544,437.45/7,622.76
  6. Step 6: Final answer
    x = 5,187.68

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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.