Home / 3,511.55-4,845.93-1,939.65

Finding the Fourth Proportional to 3,511.55, 4,845.93 and 1,939.65

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Solution

The fourth proportional to 3,511.55, 4,845.93 and 1,939.65 is: 2,676.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.55 : 4,845.93 = 1,939.65 : x
  2. Step 2: Convert to fraction form
    3,511.55/4,845.93 = 1,939.65/x
  3. Step 3: Cross multiply
    3,511.55x = 4,845.93 × 1,939.65
  4. Step 4: Simplify right side
    3,511.55x = 9,399,382.68
  5. Step 5: Solve for x
    x = 9,399,382.68/3,511.55
  6. Step 6: Final answer
    x = 2,676.70

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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.