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Finding the Fourth Proportional to 3,855.33, 5,319 and 2,529.77

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Solution

The fourth proportional to 3,855.33, 5,319 and 2,529.77 is: 3,490.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855.33 : 5,319 = 2,529.77 : x
  2. Step 2: Convert to fraction form
    3,855.33/5,319 = 2,529.77/x
  3. Step 3: Cross multiply
    3,855.33x = 5,319 × 2,529.77
  4. Step 4: Simplify right side
    3,855.33x = 13,455,820.04
  5. Step 5: Solve for x
    x = 13,455,820.04/3,855.33
  6. Step 6: Final answer
    x = 3,490.19

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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.