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Finding the Fourth Proportional to 3,472.42, 4,791.88 and 1,900.50

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Solution

The fourth proportional to 3,472.42, 4,791.88 and 1,900.50 is: 2,622.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,472.42 : 4,791.88 = 1,900.50 : x
  2. Step 2: Convert to fraction form
    3,472.42/4,791.88 = 1,900.50/x
  3. Step 3: Cross multiply
    3,472.42x = 4,791.88 × 1,900.50
  4. Step 4: Simplify right side
    3,472.42x = 9,106,967.94
  5. Step 5: Solve for x
    x = 9,106,967.94/3,472.42
  6. Step 6: Final answer
    x = 2,622.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.