Home / 4,667.97-6,443.90-2,780.19

Finding the Fourth Proportional to 4,667.97, 6,443.90 and 2,780.19

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Solution

The fourth proportional to 4,667.97, 6,443.90 and 2,780.19 is: 3,837.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,667.97 : 6,443.90 = 2,780.19 : x
  2. Step 2: Convert to fraction form
    4,667.97/6,443.90 = 2,780.19/x
  3. Step 3: Cross multiply
    4,667.97x = 6,443.90 × 2,780.19
  4. Step 4: Simplify right side
    4,667.97x = 17,915,252.44
  5. Step 5: Solve for x
    x = 17,915,252.44/4,667.97
  6. Step 6: Final answer
    x = 3,837.91

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Half scale
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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.