Home / 3,511.59-4,845.90-1,939.68

Finding the Fourth Proportional to 3,511.59, 4,845.90 and 1,939.68

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Solution

The fourth proportional to 3,511.59, 4,845.90 and 1,939.68 is: 2,676.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.59 : 4,845.90 = 1,939.68 : x
  2. Step 2: Convert to fraction form
    3,511.59/4,845.90 = 1,939.68/x
  3. Step 3: Cross multiply
    3,511.59x = 4,845.90 × 1,939.68
  4. Step 4: Simplify right side
    3,511.59x = 9,399,495.31
  5. Step 5: Solve for x
    x = 9,399,495.31/3,511.59
  6. Step 6: Final answer
    x = 2,676.71

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1.5x scale

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.