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Finding the Fourth Proportional to 3,154.64, 4,353.62 and 1,828.80

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Solution

The fourth proportional to 3,154.64, 4,353.62 and 1,828.80 is: 2,523.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,154.64 : 4,353.62 = 1,828.80 : x
  2. Step 2: Convert to fraction form
    3,154.64/4,353.62 = 1,828.80/x
  3. Step 3: Cross multiply
    3,154.64x = 4,353.62 × 1,828.80
  4. Step 4: Simplify right side
    3,154.64x = 7,961,891.11
  5. Step 5: Solve for x
    x = 7,961,891.11/3,154.64
  6. Step 6: Final answer
    x = 2,523.87

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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.