Home / 7,748.88-11,622.39-2,815.37

Finding the Fourth Proportional to 7,748.88, 11,622.39 and 2,815.37

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Solution

The fourth proportional to 7,748.88, 11,622.39 and 2,815.37 is: 4,222.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,748.88 : 11,622.39 = 2,815.37 : x
  2. Step 2: Convert to fraction form
    7,748.88/11,622.39 = 2,815.37/x
  3. Step 3: Cross multiply
    7,748.88x = 11,622.39 × 2,815.37
  4. Step 4: Simplify right side
    7,748.88x = 32,721,328.13
  5. Step 5: Solve for x
    x = 32,721,328.13/7,748.88
  6. Step 6: Final answer
    x = 4,222.72

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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.