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Finding the Fourth Proportional to 3,463.81, 4,779.93 and 1,891.87

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Solution

The fourth proportional to 3,463.81, 4,779.93 and 1,891.87 is: 2,610.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,463.81 : 4,779.93 = 1,891.87 : x
  2. Step 2: Convert to fraction form
    3,463.81/4,779.93 = 1,891.87/x
  3. Step 3: Cross multiply
    3,463.81x = 4,779.93 × 1,891.87
  4. Step 4: Simplify right side
    3,463.81x = 9,043,006.17
  5. Step 5: Solve for x
    x = 9,043,006.17/3,463.81
  6. Step 6: Final answer
    x = 2,610.71

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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.