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Finding the Fourth Proportional to 3,182.64, 4,392.03 and 1,785.39

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Solution

The fourth proportional to 3,182.64, 4,392.03 and 1,785.39 is: 2,463.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,182.64 : 4,392.03 = 1,785.39 : x
  2. Step 2: Convert to fraction form
    3,182.64/4,392.03 = 1,785.39/x
  3. Step 3: Cross multiply
    3,182.64x = 4,392.03 × 1,785.39
  4. Step 4: Simplify right side
    3,182.64x = 7,841,486.44
  5. Step 5: Solve for x
    x = 7,841,486.44/3,182.64
  6. Step 6: Final answer
    x = 2,463.83

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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.