Home / 3,382.29-4,667.47-1,890.21

Finding the Fourth Proportional to 3,382.29, 4,667.47 and 1,890.21

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Solution

The fourth proportional to 3,382.29, 4,667.47 and 1,890.21 is: 2,608.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,382.29 : 4,667.47 = 1,890.21 : x
  2. Step 2: Convert to fraction form
    3,382.29/4,667.47 = 1,890.21/x
  3. Step 3: Cross multiply
    3,382.29x = 4,667.47 × 1,890.21
  4. Step 4: Simplify right side
    3,382.29x = 8,822,511.25
  5. Step 5: Solve for x
    x = 8,822,511.25/3,382.29
  6. Step 6: Final answer
    x = 2,608.44

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Double scale
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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.