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Finding the Fourth Proportional to 3,886.55, 5,828.82 and 1,804.51

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Solution

The fourth proportional to 3,886.55, 5,828.82 and 1,804.51 is: 2,706.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,886.55 : 5,828.82 = 1,804.51 : x
  2. Step 2: Convert to fraction form
    3,886.55/5,828.82 = 1,804.51/x
  3. Step 3: Cross multiply
    3,886.55x = 5,828.82 × 1,804.51
  4. Step 4: Simplify right side
    3,886.55x = 10,518,163.98
  5. Step 5: Solve for x
    x = 10,518,163.98/3,886.55
  6. Step 6: Final answer
    x = 2,706.30

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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.