Home / 4,101.29-6,142.68-1,905.39

Finding the Fourth Proportional to 4,101.29, 6,142.68 and 1,905.39

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Solution

The fourth proportional to 4,101.29, 6,142.68 and 1,905.39 is: 2,853.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,101.29 : 6,142.68 = 1,905.39 : x
  2. Step 2: Convert to fraction form
    4,101.29/6,142.68 = 1,905.39/x
  3. Step 3: Cross multiply
    4,101.29x = 6,142.68 × 1,905.39
  4. Step 4: Simplify right side
    4,101.29x = 11,704,191.52
  5. Step 5: Solve for x
    x = 11,704,191.52/4,101.29
  6. Step 6: Final answer
    x = 2,853.79

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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.