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Finding the Fourth Proportional to 3,153.36, 4,729.92 and 1,304

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Solution

The fourth proportional to 3,153.36, 4,729.92 and 1,304 is: 1,955.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,153.36 : 4,729.92 = 1,304 : x
  2. Step 2: Convert to fraction form
    3,153.36/4,729.92 = 1,304/x
  3. Step 3: Cross multiply
    3,153.36x = 4,729.92 × 1,304
  4. Step 4: Simplify right side
    3,153.36x = 6,167,815.68
  5. Step 5: Solve for x
    x = 6,167,815.68/3,153.36
  6. Step 6: Final answer
    x = 1,955.95

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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.