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Finding the Fourth Proportional to 3,463.62, 4,779.80 and 1,891.72

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Solution

The fourth proportional to 3,463.62, 4,779.80 and 1,891.72 is: 2,610.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,463.62 : 4,779.80 = 1,891.72 : x
  2. Step 2: Convert to fraction form
    3,463.62/4,779.80 = 1,891.72/x
  3. Step 3: Cross multiply
    3,463.62x = 4,779.80 × 1,891.72
  4. Step 4: Simplify right side
    3,463.62x = 9,042,043.26
  5. Step 5: Solve for x
    x = 9,042,043.26/3,463.62
  6. Step 6: Final answer
    x = 2,610.58

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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.