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Finding the Fourth Proportional to 3,244.64, 4,867.16 and 1,395.78

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Solution

The fourth proportional to 3,244.64, 4,867.16 and 1,395.78 is: 2,093.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,244.64 : 4,867.16 = 1,395.78 : x
  2. Step 2: Convert to fraction form
    3,244.64/4,867.16 = 1,395.78/x
  3. Step 3: Cross multiply
    3,244.64x = 4,867.16 × 1,395.78
  4. Step 4: Simplify right side
    3,244.64x = 6,793,477.61
  5. Step 5: Solve for x
    x = 6,793,477.61/3,244.64
  6. Step 6: Final answer
    x = 2,093.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.