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Finding the Fourth Proportional to 7,857.03, 11,784.10 and 3,175.82

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Solution

The fourth proportional to 7,857.03, 11,784.10 and 3,175.82 is: 4,763.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,857.03 : 11,784.10 = 3,175.82 : x
  2. Step 2: Convert to fraction form
    7,857.03/11,784.10 = 3,175.82/x
  3. Step 3: Cross multiply
    7,857.03x = 11,784.10 × 3,175.82
  4. Step 4: Simplify right side
    7,857.03x = 37,424,180.46
  5. Step 5: Solve for x
    x = 37,424,180.46/7,857.03
  6. Step 6: Final answer
    x = 4,763.15

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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.