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Finding the Fourth Proportional to 3,155.22, 4,353.97 and 1,828.89

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Solution

The fourth proportional to 3,155.22, 4,353.97 and 1,828.89 is: 2,523.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.22 : 4,353.97 = 1,828.89 : x
  2. Step 2: Convert to fraction form
    3,155.22/4,353.97 = 1,828.89/x
  3. Step 3: Cross multiply
    3,155.22x = 4,353.97 × 1,828.89
  4. Step 4: Simplify right side
    3,155.22x = 7,962,932.19
  5. Step 5: Solve for x
    x = 7,962,932.19/3,155.22
  6. Step 6: Final answer
    x = 2,523.73

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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.