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Finding the Fourth Proportional to 3,181, 4,772.94 and 1,537.24

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Solution

The fourth proportional to 3,181, 4,772.94 and 1,537.24 is: 2,306.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181 : 4,772.94 = 1,537.24 : x
  2. Step 2: Convert to fraction form
    3,181/4,772.94 = 1,537.24/x
  3. Step 3: Cross multiply
    3,181x = 4,772.94 × 1,537.24
  4. Step 4: Simplify right side
    3,181x = 7,337,154.29
  5. Step 5: Solve for x
    x = 7,337,154.29/3,181
  6. Step 6: Final answer
    x = 2,306.56

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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.