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Finding the Fourth Proportional to 2,451.28, 3,677.04 and 720.04

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Solution

The fourth proportional to 2,451.28, 3,677.04 and 720.04 is: 1,080.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,451.28 : 3,677.04 = 720.04 : x
  2. Step 2: Convert to fraction form
    2,451.28/3,677.04 = 720.04/x
  3. Step 3: Cross multiply
    2,451.28x = 3,677.04 × 720.04
  4. Step 4: Simplify right side
    2,451.28x = 2,647,615.88
  5. Step 5: Solve for x
    x = 2,647,615.88/2,451.28
  6. Step 6: Final answer
    x = 1,080.10

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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.