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Finding the Fourth Proportional to 2,704.53, 4,057.20 and 972.75

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Solution

The fourth proportional to 2,704.53, 4,057.20 and 972.75 is: 1,459.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,704.53 : 4,057.20 = 972.75 : x
  2. Step 2: Convert to fraction form
    2,704.53/4,057.20 = 972.75/x
  3. Step 3: Cross multiply
    2,704.53x = 4,057.20 × 972.75
  4. Step 4: Simplify right side
    2,704.53x = 3,946,641.30
  5. Step 5: Solve for x
    x = 3,946,641.30/2,704.53
  6. Step 6: Final answer
    x = 1,459.27

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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.