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Finding the Fourth Proportional to 3,383.13, 4,667.79 and 1,890.88

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Solution

The fourth proportional to 3,383.13, 4,667.79 and 1,890.88 is: 2,608.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,383.13 : 4,667.79 = 1,890.88 : x
  2. Step 2: Convert to fraction form
    3,383.13/4,667.79 = 1,890.88/x
  3. Step 3: Cross multiply
    3,383.13x = 4,667.79 × 1,890.88
  4. Step 4: Simplify right side
    3,383.13x = 8,826,230.76
  5. Step 5: Solve for x
    x = 8,826,230.76/3,383.13
  6. Step 6: Final answer
    x = 2,608.89

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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.