Home / 2,939.69-4,411.26-1,092.10

Finding the Fourth Proportional to 2,939.69, 4,411.26 and 1,092.10

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Solution

The fourth proportional to 2,939.69, 4,411.26 and 1,092.10 is: 1,638.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.69 : 4,411.26 = 1,092.10 : x
  2. Step 2: Convert to fraction form
    2,939.69/4,411.26 = 1,092.10/x
  3. Step 3: Cross multiply
    2,939.69x = 4,411.26 × 1,092.10
  4. Step 4: Simplify right side
    2,939.69x = 4,817,537.05
  5. Step 5: Solve for x
    x = 4,817,537.05/2,939.69
  6. Step 6: Final answer
    x = 1,638.79

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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.