Home / 3,875.20-5,346.42-2,382.28

Finding the Fourth Proportional to 3,875.20, 5,346.42 and 2,382.28

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Solution

The fourth proportional to 3,875.20, 5,346.42 and 2,382.28 is: 3,286.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,875.20 : 5,346.42 = 2,382.28 : x
  2. Step 2: Convert to fraction form
    3,875.20/5,346.42 = 2,382.28/x
  3. Step 3: Cross multiply
    3,875.20x = 5,346.42 × 2,382.28
  4. Step 4: Simplify right side
    3,875.20x = 12,736,669.44
  5. Step 5: Solve for x
    x = 12,736,669.44/3,875.20
  6. Step 6: Final answer
    x = 3,286.71

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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.