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Finding the Fourth Proportional to 2,889.05, 3,984.03 and 2,327.72

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Solution

The fourth proportional to 2,889.05, 3,984.03 and 2,327.72 is: 3,209.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,889.05 : 3,984.03 = 2,327.72 : x
  2. Step 2: Convert to fraction form
    2,889.05/3,984.03 = 2,327.72/x
  3. Step 3: Cross multiply
    2,889.05x = 3,984.03 × 2,327.72
  4. Step 4: Simplify right side
    2,889.05x = 9,273,686.39
  5. Step 5: Solve for x
    x = 9,273,686.39/2,889.05
  6. Step 6: Final answer
    x = 3,209.95

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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.