Home / 3,867.76-5,331.62-2,372.92

Finding the Fourth Proportional to 3,867.76, 5,331.62 and 2,372.92

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Solution

The fourth proportional to 3,867.76, 5,331.62 and 2,372.92 is: 3,271.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.76 : 5,331.62 = 2,372.92 : x
  2. Step 2: Convert to fraction form
    3,867.76/5,331.62 = 2,372.92/x
  3. Step 3: Cross multiply
    3,867.76x = 5,331.62 × 2,372.92
  4. Step 4: Simplify right side
    3,867.76x = 12,651,507.73
  5. Step 5: Solve for x
    x = 12,651,507.73/3,867.76
  6. Step 6: Final answer
    x = 3,271.02

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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.