Home / 3,382.49-4,667.68-1,890.40

Finding the Fourth Proportional to 3,382.49, 4,667.68 and 1,890.40

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Solution

The fourth proportional to 3,382.49, 4,667.68 and 1,890.40 is: 2,608.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,382.49 : 4,667.68 = 1,890.40 : x
  2. Step 2: Convert to fraction form
    3,382.49/4,667.68 = 1,890.40/x
  3. Step 3: Cross multiply
    3,382.49x = 4,667.68 × 1,890.40
  4. Step 4: Simplify right side
    3,382.49x = 8,823,781.72
  5. Step 5: Solve for x
    x = 8,823,781.72/3,382.49
  6. Step 6: Final answer
    x = 2,608.66

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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.