Home / 7,902.38-11,854.77-2,972.36

Finding the Fourth Proportional to 7,902.38, 11,854.77 and 2,972.36

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Solution

The fourth proportional to 7,902.38, 11,854.77 and 2,972.36 is: 4,458.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,902.38 : 11,854.77 = 2,972.36 : x
  2. Step 2: Convert to fraction form
    7,902.38/11,854.77 = 2,972.36/x
  3. Step 3: Cross multiply
    7,902.38x = 11,854.77 × 2,972.36
  4. Step 4: Simplify right side
    7,902.38x = 35,236,584.88
  5. Step 5: Solve for x
    x = 35,236,584.88/7,902.38
  6. Step 6: Final answer
    x = 4,458.99

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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.