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Finding the Fourth Proportional to 3,855.58, 5,323.30 and 2,531.53

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Solution

The fourth proportional to 3,855.58, 5,323.30 and 2,531.53 is: 3,495.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855.58 : 5,323.30 = 2,531.53 : x
  2. Step 2: Convert to fraction form
    3,855.58/5,323.30 = 2,531.53/x
  3. Step 3: Cross multiply
    3,855.58x = 5,323.30 × 2,531.53
  4. Step 4: Simplify right side
    3,855.58x = 13,476,093.65
  5. Step 5: Solve for x
    x = 13,476,093.65/3,855.58
  6. Step 6: Final answer
    x = 3,495.22

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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.