Home / 7,942.32-11,913.48-2,748.60

Finding the Fourth Proportional to 7,942.32, 11,913.48 and 2,748.60

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Solution

The fourth proportional to 7,942.32, 11,913.48 and 2,748.60 is: 4,122.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,942.32 : 11,913.48 = 2,748.60 : x
  2. Step 2: Convert to fraction form
    7,942.32/11,913.48 = 2,748.60/x
  3. Step 3: Cross multiply
    7,942.32x = 11,913.48 × 2,748.60
  4. Step 4: Simplify right side
    7,942.32x = 32,745,391.13
  5. Step 5: Solve for x
    x = 32,745,391.13/7,942.32
  6. Step 6: Final answer
    x = 4,122.90

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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.