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Finding the Fourth Proportional to 5,537.62, 7,642.10 and 3,019.87

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Solution

The fourth proportional to 5,537.62, 7,642.10 and 3,019.87 is: 4,167.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,537.62 : 7,642.10 = 3,019.87 : x
  2. Step 2: Convert to fraction form
    5,537.62/7,642.10 = 3,019.87/x
  3. Step 3: Cross multiply
    5,537.62x = 7,642.10 × 3,019.87
  4. Step 4: Simplify right side
    5,537.62x = 23,078,106.60
  5. Step 5: Solve for x
    x = 23,078,106.60/5,537.62
  6. Step 6: Final answer
    x = 4,167.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.