Home / 3,382.12-4,667.42-1,890.20

Finding the Fourth Proportional to 3,382.12, 4,667.42 and 1,890.20

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Solution

The fourth proportional to 3,382.12, 4,667.42 and 1,890.20 is: 2,608.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,382.12 : 4,667.42 = 1,890.20 : x
  2. Step 2: Convert to fraction form
    3,382.12/4,667.42 = 1,890.20/x
  3. Step 3: Cross multiply
    3,382.12x = 4,667.42 × 1,890.20
  4. Step 4: Simplify right side
    3,382.12x = 8,822,373.68
  5. Step 5: Solve for x
    x = 8,822,373.68/3,382.12
  6. Step 6: Final answer
    x = 2,608.53

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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.