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Finding the Fourth Proportional to 5,304.40, 7,954.20 and 2,381.20

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Solution

The fourth proportional to 5,304.40, 7,954.20 and 2,381.20 is: 3,570.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,304.40 : 7,954.20 = 2,381.20 : x
  2. Step 2: Convert to fraction form
    5,304.40/7,954.20 = 2,381.20/x
  3. Step 3: Cross multiply
    5,304.40x = 7,954.20 × 2,381.20
  4. Step 4: Simplify right side
    5,304.40x = 18,940,541.04
  5. Step 5: Solve for x
    x = 18,940,541.04/5,304.40
  6. Step 6: Final answer
    x = 3,570.72

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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.